677667131 has 4 divisors (see below), whose sum is σ = 677726064. Its totient is φ = 677608200.

The previous prime is 677667127. The next prime is 677667181. The reversal of 677667131 is 131766776.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 677667131 - 2² = 677667127 is a prime.

It is a super-2 number, since 2×677667131² = 918465480875542322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677667181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5975 + ... + 37296.

It is an arithmetic number, because the mean of its divisors is an integer number (169431516).

Almost surely, 2^677667131 is an apocalyptic number.

677667131 is a deficient number, since it is larger than the sum of its proper divisors (58933).

677667131 is a wasteful number, since it uses less digits than its factorization.

677667131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58932.

The product of its digits is 222264, while the sum is 44.

The square root of 677667131 is about 26032.0404693908. The cubic root of 677667131 is about 878.3591717026.

The spelling of 677667131 in words is "six hundred seventy-seven million, six hundred sixty-seven thousand, one hundred thirty-one".