77423168 has 28 divisors (see below), whose sum is σ = 162676332. Its totient is φ = 36433920.

The previous prime is 77423153. The next prime is 77423173. The reversal of 77423168 is 86132477.

It can be written as a sum of positive squares in 2 ways, for example, as 57638464 + 19784704 = 7592^2 + 4448^2 .

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, 34493 + ... + 36668.

It is an arithmetic number, because the mean of its divisors is an integer number (5809869).

Almost surely, 2^77423168 is an apocalyptic number.

It is an amenable number.

77423168 is an abundant number, since it is smaller than the sum of its proper divisors (85253164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77423168 is a wasteful number, since it uses less digits than its factorization.

77423168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71190 (or 71180 counting only the distinct ones).

The product of its digits is 56448, while the sum is 38.

The square root of 77423168 is about 8799.0435843903. The cubic root of 77423168 is about 426.2100105529.

The spelling of 77423168 in words is "seventy-seven million, four hundred twenty-three thousand, one hundred sixty-eight".