677248939 has 8 divisors (see below), whose sum is σ = 716480000. Its totient is φ = 638376552.

The previous prime is 677248921. The next prime is 677248969. The reversal of 677248939 is 939842776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 677248939 - 2⁷ = 677248811 is a prime.

It is a super-2 number, since 2×677248939² = 917332250753251442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 677248939.

It is not an unprimeable number, because it can be changed into a prime (677248969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85779 + ... + 93340.

It is an arithmetic number, because the mean of its divisors is an integer number (89560000).

Almost surely, 2^677248939 is an apocalyptic number.

677248939 is a deficient number, since it is larger than the sum of its proper divisors (39231061).

677248939 is a wasteful number, since it uses less digits than its factorization.

677248939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179337.

The product of its digits is 4572288, while the sum is 55.

The square root of 677248939 is about 26024.0069743305. The cubic root of 677248939 is about 878.1784544808.

The spelling of 677248939 in words is "six hundred seventy-seven million, two hundred forty-eight thousand, nine hundred thirty-nine".