23190647 has 8 divisors (see below), whose sum is σ = 24330240. Its totient is φ = 22062040.

The previous prime is 23190619. The next prime is 23190653. The reversal of 23190647 is 74609132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23190647 - 2¹⁰ = 23189623 is a prime.

It is a super-2 number, since 2×23190647² = 1075612216557218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23190667) 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, 1754 + ... + 7032.

It is an arithmetic number, because the mean of its divisors is an integer number (3041280).

Almost surely, 2^23190647 is an apocalyptic number.

23190647 is a deficient number, since it is larger than the sum of its proper divisors (1139593).

23190647 is a wasteful number, since it uses less digits than its factorization.

23190647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5493.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 23190647 is about 4815.6668281766. Note that the first 3 decimals coincide. The cubic root of 23190647 is about 285.1702973184.

Adding to 23190647 its reverse (74609132), we get a palindrome (97799779).

The spelling of 23190647 in words is "twenty-three million, one hundred ninety thousand, six hundred forty-seven".