23143347 has 8 divisors (see below), whose sum is σ = 34286480. Its totient is φ = 15428880.

The previous prime is 23143343. The next prime is 23143357. The reversal of 23143347 is 74334132.

23143347 is a `hidden beast` number, since 2 + 314 + 3 + 347 = 666.

It is not a de Polignac number, because 23143347 - 2² = 23143343 is a prime.

It is a super-2 number, since 2×23143347² = 1071229020724818, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 857161 = 23143347 / (2 + 3 + 1 + 4 + 3 + 3 + 4 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23143347.

It is not an unprimeable number, because it can be changed into a prime (23143343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428554 + ... + 428607.

It is an arithmetic number, because the mean of its divisors is an integer number (4285810).

Almost surely, 2^23143347 is an apocalyptic number.

23143347 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

23143347 is a deficient number, since it is larger than the sum of its proper divisors (11143133).

23143347 is an equidigital number, since it uses as much as digits as its factorization.

23143347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857170 (or 857164 counting only the distinct ones).

The product of its digits is 6048, while the sum is 27.

The square root of 23143347 is about 4810.7532674208. The cubic root of 23143347 is about 284.9762861155.

Adding to 23143347 its reverse (74334132), we get a palindrome (97477479).

The spelling of 23143347 in words is "twenty-three million, one hundred forty-three thousand, three hundred forty-seven".