77132007 has 10 divisors (see below), whose sum is σ = 115222008. Its totient is φ = 51421284.

The previous prime is 77131991. The next prime is 77132021. The reversal of 77132007 is 70023177.

It is not a de Polignac number, because 77132007 - 2⁴ = 77131991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77132207) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 476043 + ... + 476204.

Almost surely, 2^77132007 is an apocalyptic number.

77132007 is a deficient number, since it is larger than the sum of its proper divisors (38090001).

77132007 is an equidigital number, since it uses as much as digits as its factorization.

77132007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952259 (or 952250 counting only the distinct ones).

The product of its (nonzero) digits is 2058, while the sum is 27.

The square root of 77132007 is about 8782.4829632627. The cubic root of 77132007 is about 425.6750646537.

The spelling of 77132007 in words is "seventy-seven million, one hundred thirty-two thousand, seven".