677899134 has 96 divisors (see below), whose sum is σ = 1665930240. Its totient is φ = 197366400.

The previous prime is 677899133. The next prime is 677899139. The reversal of 677899134 is 431998776.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677899133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1098394 + ... + 1099010.

It is an arithmetic number, because the mean of its divisors is an integer number (17353440).

Almost surely, 2^677899134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 677899134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (832965120).

677899134 is an abundant number, since it is smaller than the sum of its proper divisors (988031106).

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

677899134 is a wasteful number, since it uses less digits than its factorization.

677899134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846 (or 843 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 677899134 is about 26036.4961928444. The cubic root of 677899134 is about 878.4593972670.

It can be divided in two parts, 677 and 899134, that added together give a triangular number (899811 = T₁₃₄₁).

The spelling of 677899134 in words is "six hundred seventy-seven million, eight hundred ninety-nine thousand, one hundred thirty-four".