670275828 has 36 divisors (see below), whose sum is σ = 1695990660. Its totient is φ = 223203456.

The previous prime is 670275803. The next prime is 670275833. The reversal of 670275828 is 828572076.

670275828 is a `hidden beast` number, since 67 + 0 + 2 + 7 + 582 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 498718224 + 171557604 = 22332^2 + 13098^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29776 + ... + 47192.

Almost surely, 2^670275828 is an apocalyptic number.

It is an amenable number.

670275828 is an abundant number, since it is smaller than the sum of its proper divisors (1025714832).

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

670275828 is a wasteful number, since it uses less digits than its factorization.

670275828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18496 (or 18491 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 670275828 is about 25889.6857454856. The cubic root of 670275828 is about 875.1540748544.

The spelling of 670275828 in words is "six hundred seventy million, two hundred seventy-five thousand, eight hundred twenty-eight".