68771930 has 16 divisors (see below), whose sum is σ = 124152480. Its totient is φ = 27428112.

The previous prime is 68771929. The next prime is 68771971. The reversal of 68771930 is 3917786.

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, 6440 + ... + 13379.

It is an arithmetic number, because the mean of its divisors is an integer number (7759530).

Almost surely, 2^68771930 is an apocalyptic number.

68771930 is a deficient number, since it is larger than the sum of its proper divisors (55380550).

68771930 is a wasteful number, since it uses less digits than its factorization.

68771930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20173.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 68771930 is about 8292.8842992050. The cubic root of 68771930 is about 409.7041887678.

The spelling of 68771930 in words is "sixty-eight million, seven hundred seventy-one thousand, nine hundred thirty".