670450904 has 16 divisors (see below), whose sum is σ = 1257486120. Its totient is φ = 335121280.

The previous prime is 670450903. The next prime is 670450931. The reversal of 670450904 is 409054076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670450903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18947 + ... + 41229.

Almost surely, 2^670450904 is an apocalyptic number.

It is an amenable number.

670450904 is a deficient number, since it is larger than the sum of its proper divisors (587035216).

670450904 is a wasteful number, since it uses less digits than its factorization.

670450904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26050 (or 26046 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 670450904 is about 25893.0667167873. The cubic root of 670450904 is about 875.2302649492.

The spelling of 670450904 in words is "six hundred seventy million, four hundred fifty thousand, nine hundred four".