677155422 has 16 divisors (see below), whose sum is σ = 1359583632. Its totient is φ = 224839680.

The previous prime is 677155411. The next prime is 677155439. The reversal of 677155422 is 224551776.

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, 218029 + ... + 221112.

It is an arithmetic number, because the mean of its divisors is an integer number (84973977).

Almost surely, 2^677155422 is an apocalyptic number.

677155422 is an abundant number, since it is smaller than the sum of its proper divisors (682428210).

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

677155422 is a wasteful number, since it uses less digits than its factorization.

677155422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439403.

The product of its digits is 117600, while the sum is 39.

The square root of 677155422 is about 26022.2101674704. The cubic root of 677155422 is about 878.1380319271.

It can be divided in two parts, 67715 and 5422, that added together give a palindrome (73137).

The spelling of 677155422 in words is "six hundred seventy-seven million, one hundred fifty-five thousand, four hundred twenty-two".