670794639 has 8 divisors (see below), whose sum is σ = 941466240. Its totient is φ = 423659736.

The previous prime is 670794583. The next prime is 670794643. The reversal of 670794639 is 936497076.

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

It is not a de Polignac number, because 670794639 - 2¹² = 670790543 is a prime.

It is a super-2 number, since 2×670794639² = 899930895422280642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 670794591 and 670794600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670794239) 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, 5884107 + ... + 5884220.

It is an arithmetic number, because the mean of its divisors is an integer number (117683280).

Almost surely, 2^670794639 is an apocalyptic number.

670794639 is a deficient number, since it is larger than the sum of its proper divisors (270671601).

670794639 is a wasteful number, since it uses less digits than its factorization.

670794639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11768349.

The product of its (nonzero) digits is 1714608, while the sum is 51.

The square root of 670794639 is about 25899.7034539008. The cubic root of 670794639 is about 875.3798139934.

The spelling of 670794639 in words is "six hundred seventy million, seven hundred ninety-four thousand, six hundred thirty-nine".