677245122 has 24 divisors (see below), whose sum is σ = 1480830780. Its totient is φ = 223676640.

The previous prime is 677245087. The next prime is 677245123. The reversal of 677245122 is 221542776.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 674492841 + 2752281 = 25971^2 + 1659^2 .

It is not an unprimeable number, because it can be changed into a prime (677245123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170629 + ... + 174552.

Almost surely, 2^677245122 is an apocalyptic number.

677245122 is an abundant number, since it is smaller than the sum of its proper divisors (803585658).

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

677245122 is a wasteful number, since it uses less digits than its factorization.

677245122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345298 (or 345295 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 677245122 is about 26023.9336380955. The cubic root of 677245122 is about 878.1768046623.

Adding to 677245122 its reverse (221542776), we get a palindrome (898787898).

The spelling of 677245122 in words is "six hundred seventy-seven million, two hundred forty-five thousand, one hundred twenty-two".