77530832 has 20 divisors (see below), whose sum is σ = 151706436. Its totient is φ = 38380800.

The previous prime is 77530823. The next prime is 77530841. The reversal of 77530832 is 23803577.

It is an interprime number because it is at equal distance from previous prime (77530823) and next prime (77530841).

It can be written as a sum of positive squares in 2 ways, for example, as 76457536 + 1073296 = 8744^2 + 1036^2 .

It is a super-2 number, since 2×77530832² = 12022059821224448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77530792 and 77530801.

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, 22373 + ... + 25604.

Almost surely, 2^77530832 is an apocalyptic number.

It is an amenable number.

77530832 is a deficient number, since it is larger than the sum of its proper divisors (74175604).

77530832 is a wasteful number, since it uses less digits than its factorization.

77530832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48086 (or 48080 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 77530832 is about 8805.1593966265. The cubic root of 77530832 is about 426.4074803884.

The spelling of 77530832 in words is "seventy-seven million, five hundred thirty thousand, eight hundred thirty-two".