670949814 has 16 divisors (see below), whose sum is σ = 1342448640. Its totient is φ = 223558440.

The previous prime is 670949791. The next prime is 670949821. The reversal of 670949814 is 418949076.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6034 + ... + 37125.

It is an arithmetic number, because the mean of its divisors is an integer number (83903040).

Almost surely, 2^670949814 is an apocalyptic number.

670949814 is an abundant number, since it is smaller than the sum of its proper divisors (671498826).

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

670949814 is a wasteful number, since it uses less digits than its factorization.

670949814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45755.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 670949814 is about 25902.6989713427. The cubic root of 670949814 is about 875.4473093597.

The spelling of 670949814 in words is "six hundred seventy million, nine hundred forty-nine thousand, eight hundred fourteen".