670945884 has 48 divisors (see below), whose sum is σ = 1792740096. Its totient is φ = 191318400.

The previous prime is 670945883. The next prime is 670945897. The reversal of 670945884 is 488549076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670945883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36099 + ... + 51429.

It is an arithmetic number, because the mean of its divisors is an integer number (37348752).

Almost surely, 2^670945884 is an apocalyptic number.

It is an amenable number.

670945884 is an abundant number, since it is smaller than the sum of its proper divisors (1121794212).

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

670945884 is a wasteful number, since it uses less digits than its factorization.

670945884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15866 (or 15864 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 51.

The square root of 670945884 is about 25902.6231104110. The cubic root of 670945884 is about 875.4456000840.

The spelling of 670945884 in words is "six hundred seventy million, nine hundred forty-five thousand, eight hundred eighty-four".