670704032 has 48 divisors (see below), whose sum is σ = 1368841320. Its totient is φ = 323232768.

The previous prime is 670704031. The next prime is 670704037. The reversal of 670704032 is 230407076.

It can be written as a sum of positive squares in 4 ways, for example, as 665846416 + 4857616 = 25804^2 + 2204^2 .

It is a junction number, because it is equal to n+sod(n) for n = 670703986 and 670704004.

It is not an unprimeable number, because it can be changed into a prime (670704031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126458 + ... + 131654.

Almost surely, 2^670704032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670704032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (684420660).

670704032 is an abundant number, since it is smaller than the sum of its proper divisors (698137288).

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

670704032 is a wasteful number, since it uses less digits than its factorization.

670704032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5353 (or 5345 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 670704032 is about 25897.9542049174. The cubic root of 670704032 is about 875.3403984974.

The spelling of 670704032 in words is "six hundred seventy million, seven hundred four thousand, thirty-two".