28342347 has 8 divisors (see below), whose sum is σ = 41225280. Its totient is φ = 17177160.

The previous prime is 28342343. The next prime is 28342351. The reversal of 28342347 is 74324382.

It is an interprime number because it is at equal distance from previous prime (28342343) and next prime (28342351).

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

It is not a de Polignac number, because 28342347 - 2² = 28342343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 858859 = 28342347 / (2 + 8 + 3 + 4 + 2 + 3 + 4 + 7).

It is not an unprimeable number, because it can be changed into a prime (28342343) 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, 429397 + ... + 429462.

It is an arithmetic number, because the mean of its divisors is an integer number (5153160).

Almost surely, 2^28342347 is an apocalyptic number.

28342347 is a deficient number, since it is larger than the sum of its proper divisors (12882933).

28342347 is a wasteful number, since it uses less digits than its factorization.

28342347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858873.

The product of its digits is 32256, while the sum is 33.

The square root of 28342347 is about 5323.7530934483. The cubic root of 28342347 is about 304.8914672513.

The spelling of 28342347 in words is "twenty-eight million, three hundred forty-two thousand, three hundred forty-seven".