77630032 has 10 divisors (see below), whose sum is σ = 150408218. Its totient is φ = 38815008.

The previous prime is 77630023. The next prime is 77630039. The reversal of 77630032 is 23003677.

It can be written as a sum of positive squares in only one way, i.e., 39388176 + 38241856 = 6276^2 + 6184^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77630039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2425923 + ... + 2425954.

Almost surely, 2^77630032 is an apocalyptic number.

It is an amenable number.

77630032 is a deficient number, since it is larger than the sum of its proper divisors (72778186).

77630032 is a wasteful number, since it uses less digits than its factorization.

77630032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4851885 (or 4851879 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 28.

The square root of 77630032 is about 8810.7906569161. The cubic root of 77630032 is about 426.5892643880.

The spelling of 77630032 in words is "seventy-seven million, six hundred thirty thousand, thirty-two".