77336631 has 24 divisors (see below), whose sum is σ = 117939120. Its totient is φ = 48698496.

The previous prime is 77336627. The next prime is 77336647. The reversal of 77336631 is 13663377.

It is not a de Polignac number, because 77336631 - 2² = 77336627 is a prime.

It is a super-2 number, since 2×77336631² = 11961908988860322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77336671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105141 + ... + 105873.

It is an arithmetic number, because the mean of its divisors is an integer number (4914130).

Almost surely, 2^77336631 is an apocalyptic number.

77336631 is a deficient number, since it is larger than the sum of its proper divisors (40602489).

77336631 is a wasteful number, since it uses less digits than its factorization.

77336631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375 (or 1372 counting only the distinct ones).

The product of its digits is 47628, while the sum is 36.

The square root of 77336631 is about 8794.1248001151. The cubic root of 77336631 is about 426.0511576466.

The spelling of 77336631 in words is "seventy-seven million, three hundred thirty-six thousand, six hundred thirty-one".