68977508 has 6 divisors (see below), whose sum is σ = 120710646. Its totient is φ = 34488752.

The previous prime is 68977501. The next prime is 68977523. The reversal of 68977508 is 80577986.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 59105344 + 9872164 = 7688^2 + 3142^2 .

It is not an unprimeable number, because it can be changed into a prime (68977501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8622185 + ... + 8622192.

It is an arithmetic number, because the mean of its divisors is an integer number (20118441).

Almost surely, 2^68977508 is an apocalyptic number.

It is an amenable number.

68977508 is a deficient number, since it is larger than the sum of its proper divisors (51733138).

68977508 is a wasteful number, since it uses less digits than its factorization.

68977508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17244381 (or 17244379 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 50.

The square root of 68977508 is about 8305.2698932666. The cubic root of 68977508 is about 410.1120217400.

The spelling of 68977508 in words is "sixty-eight million, nine hundred seventy-seven thousand, five hundred eight".