670734651 has 8 divisors (see below), whose sum is σ = 895199760. Its totient is φ = 446712992.

The previous prime is 670734641. The next prime is 670734653. The reversal of 670734651 is 156437076.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 670734651 - 2⁹ = 670734139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (670734653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107316 + ... + 113393.

It is an arithmetic number, because the mean of its divisors is an integer number (111899970).

Almost surely, 2^670734651 is an apocalyptic number.

670734651 is a deficient number, since it is larger than the sum of its proper divisors (224465109).

670734651 is a wasteful number, since it uses less digits than its factorization.

670734651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221725.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 670734651 is about 25898.5453452506. The cubic root of 670734651 is about 875.3537186499.

The spelling of 670734651 in words is "six hundred seventy million, seven hundred thirty-four thousand, six hundred fifty-one".