670977 has 8 divisors (see below), whose sum is σ = 994080. Its totient is φ = 447300.

The previous prime is 670963. The next prime is 670987. The reversal of 670977 is 779076.

It is not a de Polignac number, because 670977 - 2⁷ = 670849 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 670977.

It is not an unprimeable number, because it can be changed into a prime (670987) 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, 12399 + ... + 12452.

It is an arithmetic number, because the mean of its divisors is an integer number (124260).

2⁶⁷⁰⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

670977 is a deficient number, since it is larger than the sum of its proper divisors (323103).

670977 is a wasteful number, since it uses less digits than its factorization.

670977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24860 (or 24854 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 36.

The square root of 670977 is about 819.1318575175. The cubic root of 670977 is about 87.5459133189.

It can be divided in two parts, 6709 and 77, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 670977 in words is "six hundred seventy thousand, nine hundred seventy-seven".