671185898 has 16 divisors (see below), whose sum is σ = 1042077696. Its totient is φ = 323885520.

The previous prime is 671185873. The next prime is 671185901. The reversal of 671185898 is 898581176.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8615 + ... + 37637.

It is an arithmetic number, because the mean of its divisors is an integer number (65129856).

Almost surely, 2^671185898 is an apocalyptic number.

671185898 is a deficient number, since it is larger than the sum of its proper divisors (370891798).

671185898 is a wasteful number, since it uses less digits than its factorization.

671185898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29429.

The product of its digits is 967680, while the sum is 53.

The square root of 671185898 is about 25907.2557018299. The cubic root of 671185898 is about 875.5499771807.

The spelling of 671185898 in words is "six hundred seventy-one million, one hundred eighty-five thousand, eight hundred ninety-eight".