77395828 has 12 divisors (see below), whose sum is σ = 141331680. Its totient is φ = 37015352.

The previous prime is 77395811. The next prime is 77395831. The reversal of 77395828 is 82859377.

It is a super-2 number, since 2×77395828² = 11980228383611168, 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 3 ways as a sum of consecutive naturals, for example, 420538 + ... + 420721.

It is an arithmetic number, because the mean of its divisors is an integer number (11777640).

Almost surely, 2^77395828 is an apocalyptic number.

It is an amenable number.

77395828 is a deficient number, since it is larger than the sum of its proper divisors (63935852).

77395828 is a wasteful number, since it uses less digits than its factorization.

77395828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841286 (or 841284 counting only the distinct ones).

The product of its digits is 846720, while the sum is 49.

The square root of 77395828 is about 8797.4898692752. The cubic root of 77395828 is about 426.1598362796.

The spelling of 77395828 in words is "seventy-seven million, three hundred ninety-five thousand, eight hundred twenty-eight".