670212864 has 108 divisors (see below), whose sum is σ = 1939649712. Its totient is φ = 222566400.

The previous prime is 670212841. The next prime is 670212869. The reversal of 670212864 is 468212076.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (670212869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1061829 + ... + 1062459.

Almost surely, 2^670212864 is an apocalyptic number.

670212864 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670212864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (969824856).

670212864 is an abundant number, since it is smaller than the sum of its proper divisors (1269436848).

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

670212864 is a wasteful number, since it uses less digits than its factorization.

670212864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 670212864 is about 25888.4697114372. The cubic root of 670212864 is about 875.1266707499.

The spelling of 670212864 in words is "six hundred seventy million, two hundred twelve thousand, eight hundred sixty-four".