23562397 has 4 divisors (see below), whose sum is σ = 23629500. Its totient is φ = 23495296.

The previous prime is 23562389. The next prime is 23562401. The reversal of 23562397 is 79326532.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12313081 + 11249316 = 3509^2 + 3354^2 .

It is a cyclic number.

It is not a de Polignac number, because 23562397 - 2³ = 23562389 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23568397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33022 + ... + 33727.

It is an arithmetic number, because the mean of its divisors is an integer number (5907375).

Almost surely, 2^23562397 is an apocalyptic number.

It is an amenable number.

23562397 is a deficient number, since it is larger than the sum of its proper divisors (67103).

23562397 is an equidigital number, since it uses as much as digits as its factorization.

23562397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67102.

The product of its digits is 68040, while the sum is 37.

The square root of 23562397 is about 4854.1113501855. Note that the first 3 decimals coincide. The cubic root of 23562397 is about 286.6860029923.

It can be divided in two parts, 2356 and 2397, that added together give a triangular number (4753 = T₉₇).

The spelling of 23562397 in words is "twenty-three million, five hundred sixty-two thousand, three hundred ninety-seven".