77932001 has 8 divisors (see below), whose sum is σ = 90883200. Its totient is φ = 66798564.

The previous prime is 77931991. The next prime is 77932007. The reversal of 77932001 is 10023977.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-77932001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (77932007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113261 + ... + 113946.

It is an arithmetic number, because the mean of its divisors is an integer number (11360400).

Almost surely, 2^77932001 is an apocalyptic number.

It is an amenable number.

77932001 is a deficient number, since it is larger than the sum of its proper divisors (12951199).

77932001 is an equidigital number, since it uses as much as digits as its factorization.

77932001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227228 (or 227214 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 77932001 is about 8827.9103416380. The cubic root of 77932001 is about 427.1416711669.

Adding to 77932001 its reverse (10023977), we get a palindrome (87955978).

The spelling of 77932001 in words is "seventy-seven million, nine hundred thirty-two thousand, one".