670816332 has 36 divisors (see below), whose sum is σ = 1696463496. Its totient is φ = 223501440.

The previous prime is 670816319. The next prime is 670816339. The reversal of 670816332 is 233618076.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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 (670816339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139732 + ... + 144452.

It is an arithmetic number, because the mean of its divisors is an integer number (47123986).

Almost surely, 2^670816332 is an apocalyptic number.

It is an amenable number.

670816332 is an abundant number, since it is smaller than the sum of its proper divisors (1025647164).

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

670816332 is a wasteful number, since it uses less digits than its factorization.

670816332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8678 (or 8673 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 670816332 is about 25900.1222390938. The cubic root of 670816332 is about 875.3892502692.

The spelling of 670816332 in words is "six hundred seventy million, eight hundred sixteen thousand, three hundred thirty-two".