77701432 has 8 divisors (see below), whose sum is σ = 145690200. Its totient is φ = 38850712.

The previous prime is 77701427. The next prime is 77701433. The reversal of 77701432 is 23410777.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 77701394 and 77701403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77701433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4856332 + ... + 4856347.

It is an arithmetic number, because the mean of its divisors is an integer number (18211275).

Almost surely, 2^77701432 is an apocalyptic number.

It is an amenable number.

77701432 is a deficient number, since it is larger than the sum of its proper divisors (67988768).

77701432 is a wasteful number, since it uses less digits than its factorization.

77701432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9712685 (or 9712681 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 77701432 is about 8814.8415754340. The cubic root of 77701432 is about 426.7200090643.

The spelling of 77701432 in words is "seventy-seven million, seven hundred one thousand, four hundred thirty-two".