670735216 has 20 divisors (see below), whose sum is σ = 1306288912. Its totient is φ = 333628416.

The previous prime is 670735211. The next prime is 670735217. The reversal of 670735216 is 612537076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670735211) 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, 105516 + ... + 111691.

Almost surely, 2^670735216 is an apocalyptic number.

It is an amenable number.

670735216 is a deficient number, since it is larger than the sum of its proper divisors (635553696).

670735216 is a wasteful number, since it uses less digits than its factorization.

670735216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217408 (or 217402 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 670735216 is about 25898.5562531968. The cubic root of 670735216 is about 875.3539644374.

The spelling of 670735216 in words is "six hundred seventy million, seven hundred thirty-five thousand, two hundred sixteen".