670516 has 36 divisors (see below), whose sum is σ = 1493856. Its totient is φ = 260400.

The previous prime is 670511. The next prime is 670517. The reversal of 670516 is 615076.

670516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670511) 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, 2001 + ... + 2311.

It is an arithmetic number, because the mean of its divisors is an integer number (41496).

2⁶⁷⁰⁵¹⁶ 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 670516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (746928).

670516 is an abundant number, since it is smaller than the sum of its proper divisors (823340).

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

670516 is a wasteful number, since it uses less digits than its factorization.

670516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 670516 is about 818.8504136898. The cubic root of 670516 is about 87.5258590238.

The spelling of 670516 in words is "six hundred seventy thousand, five hundred sixteen".