670938839 has 8 divisors (see below), whose sum is σ = 681104880. Its totient is φ = 660799296.

The previous prime is 670938833. The next prime is 670938869. The reversal of 670938839 is 938839076.

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-670938839 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 (670938833) 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, 47729 + ... + 60165.

It is an arithmetic number, because the mean of its divisors is an integer number (85138110).

Almost surely, 2^670938839 is an apocalyptic number.

670938839 is a deficient number, since it is larger than the sum of its proper divisors (10166041).

670938839 is a wasteful number, since it uses less digits than its factorization.

670938839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13249.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 670938839 is about 25902.4871199659. The cubic root of 670938839 is about 875.4425359840.

The spelling of 670938839 in words is "six hundred seventy million, nine hundred thirty-eight thousand, eight hundred thirty-nine".