77963488 has 24 divisors (see below), whose sum is σ = 154388808. Its totient is φ = 38753664.

The previous prime is 77963461. The next prime is 77963497. The reversal of 77963488 is 88436977.

It is a happy number.

It is a super-2 number, since 2×77963488² = 12156610922252288, 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, 1506 + ... + 12577.

It is an arithmetic number, because the mean of its divisors is an integer number (6432867).

Almost surely, 2^77963488 is an apocalyptic number.

It is an amenable number.

77963488 is a deficient number, since it is larger than the sum of its proper divisors (76425320).

77963488 is a wasteful number, since it uses less digits than its factorization.

77963488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14266 (or 14258 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 52.

The square root of 77963488 is about 8829.6935394157. The cubic root of 77963488 is about 427.1991896818.

The spelling of 77963488 in words is "seventy-seven million, nine hundred sixty-three thousand, four hundred eighty-eight".