677331998 has 24 divisors (see below), whose sum is σ = 1185657912. Its totient is φ = 289356144.

The previous prime is 677331979. The next prime is 677332043. The reversal of 677331998 is 899133776.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20165 + ... + 41967.

It is an arithmetic number, because the mean of its divisors is an integer number (49402413).

Almost surely, 2^677331998 is an apocalyptic number.

677331998 is a deficient number, since it is larger than the sum of its proper divisors (508325914).

677331998 is a wasteful number, since it uses less digits than its factorization.

677331998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22136 (or 22129 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 53.

The square root of 677331998 is about 26025.6027403786. The cubic root of 677331998 is about 878.2143534629.

The spelling of 677331998 in words is "six hundred seventy-seven million, three hundred thirty-one thousand, nine hundred ninety-eight".