677742972 has 24 divisors (see below), whose sum is σ = 1588900992. Its totient is φ = 224842800.

The previous prime is 677742943. The next prime is 677742991. The reversal of 677742972 is 279247776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131304 + ... + 136367.

It is an arithmetic number, because the mean of its divisors is an integer number (66204208).

Almost surely, 2^677742972 is an apocalyptic number.

It is an amenable number.

677742972 is an abundant number, since it is smaller than the sum of its proper divisors (911158020).

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

677742972 is a wasteful number, since it uses less digits than its factorization.

677742972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267889 (or 267887 counting only the distinct ones).

The product of its digits is 2074464, while the sum is 51.

The square root of 677742972 is about 26033.4971142949. The cubic root of 677742972 is about 878.3919376186.

The spelling of 677742972 in words is "six hundred seventy-seven million, seven hundred forty-two thousand, nine hundred seventy-two".