677158238 has 32 divisors (see below), whose sum is σ = 1075831680. Its totient is φ = 319243680.

The previous prime is 677158211. The next prime is 677158241. The reversal of 677158238 is 832851776.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 677158192 and 677158201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 441533 + ... + 443063.

It is an arithmetic number, because the mean of its divisors is an integer number (33619740).

Almost surely, 2^677158238 is an apocalyptic number.

677158238 is a deficient number, since it is larger than the sum of its proper divisors (398673442).

677158238 is a wasteful number, since it uses less digits than its factorization.

677158238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752.

The product of its digits is 564480, while the sum is 47.

The square root of 677158238 is about 26022.2642750396. The cubic root of 677158238 is about 878.1392491923.

The spelling of 677158238 in words is "six hundred seventy-seven million, one hundred fifty-eight thousand, two hundred thirty-eight".