23238655 has 24 divisors (see below), whose sum is σ = 31141152. Its totient is φ = 16632000.

The previous prime is 23238647. The next prime is 23238667. The reversal of 23238655 is 55683232.

It is a happy number.

It is not a de Polignac number, because 23238655 - 2³ = 23238647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23238655.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42685 + ... + 43225.

It is an arithmetic number, because the mean of its divisors is an integer number (1297548).

Almost surely, 2^23238655 is an apocalyptic number.

23238655 is a deficient number, since it is larger than the sum of its proper divisors (7902497).

23238655 is a wasteful number, since it uses less digits than its factorization.

23238655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639 (or 628 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

The square root of 23238655 is about 4820.6488152530. The cubic root of 23238655 is about 285.3669429662.

The spelling of 23238655 in words is "twenty-three million, two hundred thirty-eight thousand, six hundred fifty-five".