677994280 has 16 divisors (see below), whose sum is σ = 1525487220. Its totient is φ = 271197696.

The previous prime is 677994263. The next prime is 677994281. The reversal of 677994280 is 82499776.

It can be written as a sum of positive squares in 2 ways, for example, as 614345796 + 63648484 = 24786^2 + 7978^2 .

It is not an unprimeable number, because it can be changed into a prime (677994281) 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, 8474889 + ... + 8474968.

Almost surely, 2^677994280 is an apocalyptic number.

It is an amenable number.

677994280 is an abundant number, since it is smaller than the sum of its proper divisors (847492940).

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

677994280 is a wasteful number, since it uses less digits than its factorization.

677994280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16949868 (or 16949864 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 677994280 is about 26038.3232947131. The cubic root of 677994280 is about 878.5004938370.

The spelling of 677994280 in words is "six hundred seventy-seven million, nine hundred ninety-four thousand, two hundred eighty".