123687652 has 72 divisors (see below), whose sum is σ = 255257856. Its totient is φ = 52272000.

The previous prime is 123687649. The next prime is 123687671. The reversal of 123687652 is 256786321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 456277 + ... + 456547.

It is an arithmetic number, because the mean of its divisors is an integer number (3545248).

Almost surely, 2^123687652 is an apocalyptic number.

It is an amenable number.

123687652 is an abundant number, since it is smaller than the sum of its proper divisors (131570204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123687652 is a wasteful number, since it uses less digits than its factorization.

123687652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361 (or 348 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 123687652 is about 11121.4950433833. The cubic root of 123687652 is about 498.2440431166.

It can be divided in two parts, 1236 and 87652, that added together give a palindrome (88888).

The spelling of 123687652 in words is "one hundred twenty-three million, six hundred eighty-seven thousand, six hundred fifty-two".