677155671 has 6 divisors (see below), whose sum is σ = 978113760. Its totient is φ = 451437108.

The previous prime is 677155651. The next prime is 677155697. The reversal of 677155671 is 176551776.

677155671 is a `hidden beast` number, since 6 + 77 + 15 + 567 + 1 = 666.

677155671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 677155671 - 2⁵ = 677155639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677155621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37619751 + ... + 37619768.

It is an arithmetic number, because the mean of its divisors is an integer number (163018960).

Almost surely, 2^677155671 is an apocalyptic number.

677155671 is a deficient number, since it is larger than the sum of its proper divisors (300958089).

677155671 is a wasteful number, since it uses less digits than its factorization.

677155671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75239525 (or 75239522 counting only the distinct ones).

The product of its digits is 308700, while the sum is 45.

The square root of 677155671 is about 26022.2149518445. The cubic root of 677155671 is about 878.1381395618.

The spelling of 677155671 in words is "six hundred seventy-seven million, one hundred fifty-five thousand, six hundred seventy-one".