68470928 has 10 divisors (see below), whose sum is σ = 132662454. Its totient is φ = 34235456.

The previous prime is 68470903. The next prime is 68470937. The reversal of 68470928 is 82907486.

It can be written as a sum of positive squares in only one way, i.e., 68425984 + 44944 = 8272^2 + 212^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2139701 + ... + 2139732.

Almost surely, 2^68470928 is an apocalyptic number.

It is an amenable number.

68470928 is a deficient number, since it is larger than the sum of its proper divisors (64191526).

68470928 is a wasteful number, since it uses less digits than its factorization.

68470928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4279441 (or 4279435 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 68470928 is about 8274.7161884865. The cubic root of 68470928 is about 409.1055814685.

The spelling of 68470928 in words is "sixty-eight million, four hundred seventy thousand, nine hundred twenty-eight".