677935957 has 4 divisors (see below), whose sum is σ = 678022336. Its totient is φ = 677849580.

The previous prime is 677935933. The next prime is 677936023. The reversal of 677935957 is 759539776.

It is a happy number.

677935957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 677935957 - 2¹¹ = 677933909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677935927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30093 + ... + 47554.

It is an arithmetic number, because the mean of its divisors is an integer number (169505584).

Almost surely, 2^677935957 is an apocalyptic number.

It is an amenable number.

677935957 is a deficient number, since it is larger than the sum of its proper divisors (86379).

677935957 is an equidigital number, since it uses as much as digits as its factorization.

677935957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86378.

The product of its digits is 12502350, while the sum is 58.

The square root of 677935957 is about 26037.2033252421. The cubic root of 677935957 is about 878.4753027427.

The spelling of 677935957 in words is "six hundred seventy-seven million, nine hundred thirty-five thousand, nine hundred fifty-seven".