68779798 has 16 divisors (see below), whose sum is σ = 107838720. Its totient is φ = 32838696.

The previous prime is 68779787. The next prime is 68779801. The reversal of 68779798 is 89797786.

It is a super-2 number, since 2×68779798² = 9461321225841608, which contains 22 as substring.

It is a congruent number.

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, 41461 + ... + 43087.

It is an arithmetic number, because the mean of its divisors is an integer number (6739920).

Almost surely, 2^68779798 is an apocalyptic number.

68779798 is a deficient number, since it is larger than the sum of its proper divisors (39058922).

68779798 is a wasteful number, since it uses less digits than its factorization.

68779798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571.

The product of its digits is 10668672, while the sum is 61.

The square root of 68779798 is about 8293.3586682357. The cubic root of 68779798 is about 409.7198125339.

The spelling of 68779798 in words is "sixty-eight million, seven hundred seventy-nine thousand, seven hundred ninety-eight".