23561398 has 32 divisors (see below), whose sum is σ = 42197760. Its totient is φ = 9653280.

The previous prime is 23561393. The next prime is 23561411. The reversal of 23561398 is 89316532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23561393) 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 15 ways as a sum of consecutive naturals, for example, 52965 + ... + 53407.

It is an arithmetic number, because the mean of its divisors is an integer number (1318680).

Almost surely, 2^23561398 is an apocalyptic number.

23561398 is a deficient number, since it is larger than the sum of its proper divisors (18636362).

23561398 is a wasteful number, since it uses less digits than its factorization.

23561398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612.

The product of its digits is 38880, while the sum is 37.

The square root of 23561398 is about 4854.0084466346. The cubic root of 23561398 is about 286.6819512913.

The spelling of 23561398 in words is "twenty-three million, five hundred sixty-one thousand, three hundred ninety-eight".