670481239 has 2 divisors, whose sum is σ = 670481240. Its totient is φ = 670481238.

The previous prime is 670481191. The next prime is 670481249. The reversal of 670481239 is 932184076.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670481239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670481249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335240619 + 335240620.

It is an arithmetic number, because the mean of its divisors is an integer number (335240620).

Almost surely, 2^670481239 is an apocalyptic number.

670481239 is a deficient number, since it is larger than the sum of its proper divisors (1).

670481239 is an equidigital number, since it uses as much as digits as its factorization.

670481239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 670481239 is about 25893.6524847307. The cubic root of 670481239 is about 875.2434648765.

The spelling of 670481239 in words is "six hundred seventy million, four hundred eighty-one thousand, two hundred thirty-nine".