23977928 has 32 divisors (see below), whose sum is σ = 48639360. Its totient is φ = 11016000.

The previous prime is 23977909. The next prime is 23977957. The reversal of 23977928 is 82977932.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31553 + ... + 32303.

It is an arithmetic number, because the mean of its divisors is an integer number (1519980).

Almost surely, 2^23977928 is an apocalyptic number.

It is an amenable number.

23977928 is an abundant number, since it is smaller than the sum of its proper divisors (24661432).

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

23977928 is a wasteful number, since it uses less digits than its factorization.

23977928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077 (or 1073 counting only the distinct ones).

The product of its digits is 381024, while the sum is 47.

The square root of 23977928 is about 4896.7262533248. The cubic root of 23977928 is about 288.3614610165.

The spelling of 23977928 in words is "twenty-three million, nine hundred seventy-seven thousand, nine hundred twenty-eight".