123947568 has 30 divisors (see below), whose sum is σ = 346881444. Its totient is φ = 41315808.

The previous prime is 123947557. The next prime is 123947573. The reversal of 123947568 is 865749321.

123947568 is a `hidden beast` number, since 12 + 39 + 47 + 568 = 666.

It is a super-2 number, since 2×123947568² = 30725999226229248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 430230 + ... + 430517.

Almost surely, 2^123947568 is an apocalyptic number.

123947568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

123947568 is an abundant number, since it is smaller than the sum of its proper divisors (222933876).

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

123947568 is a wasteful number, since it uses less digits than its factorization.

123947568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860761 (or 860752 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 123947568 is about 11133.1742104397. The cubic root of 123947568 is about 498.5928006286.

The spelling of 123947568 in words is "one hundred twenty-three million, nine hundred forty-seven thousand, five hundred sixty-eight".