677838998 has 4 divisors (see below), whose sum is σ = 1016758500. Its totient is φ = 338919498.

The previous prime is 677838949. The next prime is 677839013. The reversal of 677838998 is 899838776.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169459748 + ... + 169459751.

It is an arithmetic number, because the mean of its divisors is an integer number (254189625).

Almost surely, 2^677838998 is an apocalyptic number.

677838998 is a deficient number, since it is larger than the sum of its proper divisors (338919502).

677838998 is a wasteful number, since it uses less digits than its factorization.

677838998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338919501.

The product of its digits is 36578304, while the sum is 65.

The square root of 677838998 is about 26035.3413267428. The cubic root of 677838998 is about 878.4334206411.

The spelling of 677838998 in words is "six hundred seventy-seven million, eight hundred thirty-eight thousand, nine hundred ninety-eight".