77136632 has 16 divisors (see below), whose sum is σ = 145499760. Its totient is φ = 38336704.

The previous prime is 77136613. The next prime is 77136679. The reversal of 77136632 is 23663177.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 77136592 and 77136601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27533 + ... + 30204.

It is an arithmetic number, because the mean of its divisors is an integer number (9093735).

Almost surely, 2^77136632 is an apocalyptic number.

It is an amenable number.

77136632 is a deficient number, since it is larger than the sum of its proper divisors (68363128).

77136632 is a wasteful number, since it uses less digits than its factorization.

77136632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57910 (or 57906 counting only the distinct ones).

The product of its digits is 31752, while the sum is 35.

The square root of 77136632 is about 8782.7462675407. The cubic root of 77136632 is about 425.6835726125.

The spelling of 77136632 in words is "seventy-seven million, one hundred thirty-six thousand, six hundred thirty-two".