670631828 has 12 divisors (see below), whose sum is σ = 1235374560. Its totient is φ = 317667672.

The previous prime is 670631807. The next prime is 670631833. The reversal of 670631828 is 828136076.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4411976 + ... + 4412127.

It is an arithmetic number, because the mean of its divisors is an integer number (102947880).

Almost surely, 2^670631828 is an apocalyptic number.

It is an amenable number.

670631828 is a deficient number, since it is larger than the sum of its proper divisors (564742732).

670631828 is a wasteful number, since it uses less digits than its factorization.

670631828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8824126 (or 8824124 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 670631828 is about 25896.5601576735. The cubic root of 670631828 is about 875.3089860595.

The spelling of 670631828 in words is "six hundred seventy million, six hundred thirty-one thousand, eight hundred twenty-eight".