677950672 has 30 divisors (see below), whose sum is σ = 1527984978. Its totient is φ = 290549952.

The previous prime is 677950657. The next prime is 677950681. The reversal of 677950672 is 276059776.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 455224896 + 222725776 = 21336^2 + 14924^2 .

It is a super-2 number, since 2×677950672² = 919234227330503168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 431583 + ... + 433150.

Almost surely, 2^677950672 is an apocalyptic number.

It is an amenable number.

677950672 is an abundant number, since it is smaller than the sum of its proper divisors (850034306).

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

677950672 is a wasteful number, since it uses less digits than its factorization.

677950672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864755 (or 864742 counting only the distinct ones).

The product of its (nonzero) digits is 1111320, while the sum is 49.

The square root of 677950672 is about 26037.4859001402. The cubic root of 677950672 is about 878.4816586384.

The spelling of 677950672 in words is "six hundred seventy-seven million, nine hundred fifty thousand, six hundred seventy-two".