670757677 has 4 divisors (see below), whose sum is σ = 670810300. Its totient is φ = 670705056.

The previous prime is 670757669. The next prime is 670757699. The reversal of 670757677 is 776757076.

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 can be written as a sum of positive squares in 2 ways, for example, as 654387561 + 16370116 = 25581^2 + 4046^2 .

It is a cyclic number.

It is not a de Polignac number, because 670757677 - 2³ = 670757669 is a prime.

It is a super-2 number, since 2×670757677² = 899831722508872658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670757657) 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, 6199 + ... + 37147.

It is an arithmetic number, because the mean of its divisors is an integer number (167702575).

Almost surely, 2^670757677 is an apocalyptic number.

It is an amenable number.

670757677 is a deficient number, since it is larger than the sum of its proper divisors (52623).

670757677 is a wasteful number, since it uses less digits than its factorization.

670757677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52622.

The product of its (nonzero) digits is 3025260, while the sum is 52.

The square root of 670757677 is about 25898.9898837773. The cubic root of 670757677 is about 875.3637353602.

The spelling of 670757677 in words is "six hundred seventy million, seven hundred fifty-seven thousand, six hundred seventy-seven".