77447696 has 10 divisors (see below), whose sum is σ = 150054942. Its totient is φ = 38723840.

The previous prime is 77447627. The next prime is 77447717. The reversal of 77447696 is 69674477.

It can be written as a sum of positive squares in only one way, i.e., 76807696 + 640000 = 8764^2 + 800^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2420225 + ... + 2420256.

Almost surely, 2^77447696 is an apocalyptic number.

It is an amenable number.

77447696 is a deficient number, since it is larger than the sum of its proper divisors (72607246).

77447696 is a wasteful number, since it uses less digits than its factorization.

77447696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4840489 (or 4840483 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 50.

The square root of 77447696 is about 8800.4372618638. The cubic root of 77447696 is about 426.2550142024.

The spelling of 77447696 in words is "seventy-seven million, four hundred forty-seven thousand, six hundred ninety-six".