677149439 has 8 divisors (see below), whose sum is σ = 681434400. Its totient is φ = 672873696.

The previous prime is 677149409. The next prime is 677149453. The reversal of 677149439 is 934941776.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677149439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677149409) 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 7 ways as a sum of consecutive naturals, for example, 196697 + ... + 200109.

It is an arithmetic number, because the mean of its divisors is an integer number (85179300).

Almost surely, 2^677149439 is an apocalyptic number.

677149439 is a deficient number, since it is larger than the sum of its proper divisors (4284961).

677149439 is a wasteful number, since it uses less digits than its factorization.

677149439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4609.

The product of its digits is 1143072, while the sum is 50.

The square root of 677149439 is about 26022.0952077268. The cubic root of 677149439 is about 878.1354456595.

The spelling of 677149439 in words is "six hundred seventy-seven million, one hundred forty-nine thousand, four hundred thirty-nine".