670013650 has 12 divisors (see below), whose sum is σ = 1246225482. Its totient is φ = 268005440.

The previous prime is 670013579. The next prime is 670013683. The reversal of 670013650 is 56310076.

It can be written as a sum of positive squares in 3 ways, for example, as 623351089 + 46662561 = 24967^2 + 6831^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6700087 + ... + 6700186.

Almost surely, 2^670013650 is an apocalyptic number.

670013650 is a deficient number, since it is larger than the sum of its proper divisors (576211832).

670013650 is a wasteful number, since it uses less digits than its factorization.

670013650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13400285 (or 13400280 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 670013650 is about 25884.6218825000. The cubic root of 670013650 is about 875.0399546381.

The spelling of 670013650 in words is "six hundred seventy million, thirteen thousand, six hundred fifty".