677712340 has 12 divisors (see below), whose sum is σ = 1423195956. Its totient is φ = 271084928.

The previous prime is 677712337. The next prime is 677712353. The reversal of 677712340 is 43217776.

It can be written as a sum of positive squares in 2 ways, for example, as 354719556 + 322992784 = 18834^2 + 17972^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 677712340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16942789 + ... + 16942828.

It is an arithmetic number, because the mean of its divisors is an integer number (118599663).

Almost surely, 2^677712340 is an apocalyptic number.

It is an amenable number.

677712340 is an abundant number, since it is smaller than the sum of its proper divisors (745483616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

677712340 is a wasteful number, since it uses less digits than its factorization.

677712340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33885626 (or 33885624 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 677712340 is about 26032.9087886851. The cubic root of 677712340 is about 878.3787038371.

The spelling of 677712340 in words is "six hundred seventy-seven million, seven hundred twelve thousand, three hundred forty".