670555319 has 4 divisors (see below), whose sum is σ = 766348944. Its totient is φ = 574761696.

The previous prime is 670555309. The next prime is 670555343. The reversal of 670555319 is 913555076.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670555319 is a prime.

It is a super-2 number, since 2×670555319² = 899288871678383522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670555309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47896802 + ... + 47896815.

It is an arithmetic number, because the mean of its divisors is an integer number (191587236).

Almost surely, 2^670555319 is an apocalyptic number.

670555319 is a deficient number, since it is larger than the sum of its proper divisors (95793625).

670555319 is an equidigital number, since it uses as much as digits as its factorization.

670555319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95793624.

The product of its (nonzero) digits is 141750, while the sum is 41.

The square root of 670555319 is about 25895.0829116263. The cubic root of 670555319 is about 875.2756982657.

The spelling of 670555319 in words is "six hundred seventy million, five hundred fifty-five thousand, three hundred nineteen".