670591898 has 8 divisors (see below), whose sum is σ = 1015288992. Its totient is φ = 332162236.

The previous prime is 670591891. The next prime is 670591913. The reversal of 670591898 is 898195076.

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

It is not an unprimeable number, because it can be changed into a prime (670591891) 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, 1566590 + ... + 1567017.

It is an arithmetic number, because the mean of its divisors is an integer number (126911124).

Almost surely, 2^670591898 is an apocalyptic number.

670591898 is a deficient number, since it is larger than the sum of its proper divisors (344697094).

670591898 is a wasteful number, since it uses less digits than its factorization.

670591898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133716.

The product of its (nonzero) digits is 1088640, while the sum is 53.

The square root of 670591898 is about 25895.7891943845. The cubic root of 670591898 is about 875.2916134963.

The spelling of 670591898 in words is "six hundred seventy million, five hundred ninety-one thousand, eight hundred ninety-eight".