671212084 has 12 divisors (see below), whose sum is σ = 1194530400. Its totient is φ = 329917688.

The previous prime is 671212067. The next prime is 671212099. The reversal of 671212084 is 480212176.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1421824 + ... + 1422295.

It is an arithmetic number, because the mean of its divisors is an integer number (99544200).

Almost surely, 2^671212084 is an apocalyptic number.

It is an amenable number.

671212084 is a deficient number, since it is larger than the sum of its proper divisors (523318316).

671212084 is a wasteful number, since it uses less digits than its factorization.

671212084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844182 (or 2844180 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 671212084 is about 25907.7610765577. The cubic root of 671212084 is about 875.5613634219.

The spelling of 671212084 in words is "six hundred seventy-one million, two hundred twelve thousand, eighty-four".