671888070 has 96 divisors (see below), whose sum is σ = 2101582080. Its totient is φ = 145488960.

The previous prime is 671888027. The next prime is 671888081. The reversal of 671888070 is 70888176.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16096 + ... + 40035.

It is an arithmetic number, because the mean of its divisors is an integer number (21891480).

Almost surely, 2^671888070 is an apocalyptic number.

671888070 is an abundant number, since it is smaller than the sum of its proper divisors (1429694010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671888070 is a wasteful number, since it uses less digits than its factorization.

671888070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56170 (or 56167 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The square root of 671888070 is about 25920.8038069810. The cubic root of 671888070 is about 875.8551943669.

The spelling of 671888070 in words is "six hundred seventy-one million, eight hundred eighty-eight thousand, seventy".