23207855 has 16 divisors (see below), whose sum is σ = 30477600. Its totient is φ = 16824960.

The previous prime is 23207813. The next prime is 23207861. The reversal of 23207855 is 55870232.

23207855 = 865² + 866² + ... + 894².

It is not a de Polignac number, because 23207855 - 2⁶ = 23207791 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27581 + ... + 28409.

It is an arithmetic number, because the mean of its divisors is an integer number (1904850).

Almost surely, 2^23207855 is an apocalyptic number.

23207855 is a deficient number, since it is larger than the sum of its proper divisors (7269745).

23207855 is a wasteful number, since it uses less digits than its factorization.

23207855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 23207855 is about 4817.4531653146. The cubic root of 23207855 is about 285.2408142128.

The spelling of 23207855 in words is "twenty-three million, two hundred seven thousand, eight hundred fifty-five".