677249838 has 24 divisors (see below), whose sum is σ = 1469667888. Its totient is φ = 225397152.

The previous prime is 677249831. The next prime is 677249863. The reversal of 677249838 is 838942776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677249831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17431 + ... + 40722.

It is an arithmetic number, because the mean of its divisors is an integer number (61236162).

Almost surely, 2^677249838 is an apocalyptic number.

677249838 is an abundant number, since it is smaller than the sum of its proper divisors (792418050).

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

677249838 is a wasteful number, since it uses less digits than its factorization.

677249838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58808 (or 58805 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The square root of 677249838 is about 26024.0242468378. The cubic root of 677249838 is about 878.1788430539.

The spelling of 677249838 in words is "six hundred seventy-seven million, two hundred forty-nine thousand, eight hundred thirty-eight".