77701632 has 40 divisors (see below), whose sum is σ = 207006096. Its totient is φ = 25900032.

The previous prime is 77701609. The next prime is 77701633. The reversal of 77701632 is 23610777.

It is a junction number, because it is equal to n+sod(n) for n = 77701593 and 77701602.

It is not an unprimeable number, because it can be changed into a prime (77701633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23758 + ... + 26829.

Almost surely, 2^77701632 is an apocalyptic number.

It is an amenable number.

77701632 is an abundant number, since it is smaller than the sum of its proper divisors (129304464).

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

77701632 is an equidigital number, since it uses as much as digits as its factorization.

77701632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50608 (or 50592 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 33.

The square root of 77701632 is about 8814.8529199301. The cubic root of 77701632 is about 426.7203751834.

The spelling of 77701632 in words is "seventy-seven million, seven hundred one thousand, six hundred thirty-two".