23396647 has 4 divisors (see below), whose sum is σ = 23894496. Its totient is φ = 22898800.

The previous prime is 23396623. The next prime is 23396669. The reversal of 23396647 is 74669332.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23396647 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23396677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248854 + ... + 248947.

It is an arithmetic number, because the mean of its divisors is an integer number (5973624).

Almost surely, 2^23396647 is an apocalyptic number.

23396647 is a deficient number, since it is larger than the sum of its proper divisors (497849).

23396647 is an equidigital number, since it uses as much as digits as its factorization.

23396647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497848.

The product of its digits is 163296, while the sum is 40.

The square root of 23396647 is about 4837.0080628422. The cubic root of 23396647 is about 286.0121883407.

It can be divided in two parts, 2 and 3396647, that added together give a square (3396649 = 1843²).

The spelling of 23396647 in words is "twenty-three million, three hundred ninety-six thousand, six hundred forty-seven".