68620808 has 8 divisors (see below), whose sum is σ = 128664030. Its totient is φ = 34310400.

The previous prime is 68620781. The next prime is 68620817. The reversal of 68620808 is 80802686.

It can be written as a sum of positive squares in only one way, i.e., 66552964 + 2067844 = 8158^2 + 1438^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4288793 + ... + 4288808.

Almost surely, 2^68620808 is an apocalyptic number.

It is an amenable number.

68620808 is a deficient number, since it is larger than the sum of its proper divisors (60043222).

68620808 is a wasteful number, since it uses less digits than its factorization.

68620808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8577607 (or 8577603 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 68620808 is about 8283.7677417948. The cubic root of 68620808 is about 409.4038689351.

The spelling of 68620808 in words is "sixty-eight million, six hundred twenty thousand, eight hundred eight".