670423028 has 12 divisors (see below), whose sum is σ = 1279898592. Its totient is φ = 304737720.

The previous prime is 670423009. The next prime is 670423049. The reversal of 670423028 is 820324076.

It is a junction number, because it is equal to n+sod(n) for n = 670422985 and 670423003.

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, 7618400 + ... + 7618487.

It is an arithmetic number, because the mean of its divisors is an integer number (106658216).

Almost surely, 2^670423028 is an apocalyptic number.

It is an amenable number.

670423028 is a deficient number, since it is larger than the sum of its proper divisors (609475564).

670423028 is a wasteful number, since it uses less digits than its factorization.

670423028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15236902 (or 15236900 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 670423028 is about 25892.5284203764. The cubic root of 670423028 is about 875.2181346764.

The spelling of 670423028 in words is "six hundred seventy million, four hundred twenty-three thousand, twenty-eight".