677399408 has 40 divisors (see below), whose sum is σ = 1588192992. Its totient is φ = 273235968.

The previous prime is 677399407. The next prime is 677399423. The reversal of 677399408 is 804993776.

It is a self number, because there is not a number n which added to its sum of digits gives 677399408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677399407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175985 + ... + 179792.

Almost surely, 2^677399408 is an apocalyptic number.

677399408 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

677399408 is an abundant number, since it is smaller than the sum of its proper divisors (910793584).

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

677399408 is a wasteful number, since it uses less digits than its factorization.

677399408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355809 (or 355803 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 53.

The square root of 677399408 is about 26026.8977790285. The cubic root of 677399408 is about 878.2434866236.

The spelling of 677399408 in words is "six hundred seventy-seven million, three hundred ninety-nine thousand, four hundred eight".