670913424 has 60 divisors (see below), whose sum is σ = 1888072732. Its totient is φ = 222393600.

The previous prime is 670913413. The next prime is 670913447. The reversal of 670913424 is 424319076.

It can be written as a sum of positive squares in 2 ways, for example, as 185504400 + 485409024 = 13620^2 + 22032^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13194 + ... + 38934.

Almost surely, 2^670913424 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 670913424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (944036366).

670913424 is an abundant number, since it is smaller than the sum of its proper divisors (1217159308).

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

670913424 is a wasteful number, since it uses less digits than its factorization.

670913424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25936 (or 25927 counting only the distinct ones).

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

The square root of 670913424 is about 25901.9965253646. The cubic root of 670913424 is about 875.4314819944.

The spelling of 670913424 in words is "six hundred seventy million, nine hundred thirteen thousand, four hundred twenty-four".