677021131 has 8 divisors (see below), whose sum is σ = 694852560. Its totient is φ = 659417088.

The previous prime is 677021113. The next prime is 677021161. The reversal of 677021131 is 131120776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 677021131 - 2⁷ = 677021003 is a prime.

It is a super-2 number, since 2×677021131² = 916715223641038322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 677021131.

It is not an unprimeable number, because it can be changed into a prime (677021101) 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, 50806 + ... + 62731.

It is an arithmetic number, because the mean of its divisors is an integer number (86856570).

Almost surely, 2^677021131 is an apocalyptic number.

677021131 is a deficient number, since it is larger than the sum of its proper divisors (17831429).

677021131 is a wasteful number, since it uses less digits than its factorization.

677021131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113693.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 677021131 is about 26019.6297244984. The cubic root of 677021131 is about 878.0799783759.

The spelling of 677021131 in words is "six hundred seventy-seven million, twenty-one thousand, one hundred thirty-one".