670407897 has 8 divisors (see below), whose sum is σ = 903921120. Its totient is φ = 441916640.

The previous prime is 670407893. The next prime is 670407919. The reversal of 670407897 is 798704076.

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 670407897 - 2² = 670407893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (670407893) 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, 1255179 + ... + 1255712.

It is an arithmetic number, because the mean of its divisors is an integer number (112990140).

Almost surely, 2^670407897 is an apocalyptic number.

It is an amenable number.

670407897 is a deficient number, since it is larger than the sum of its proper divisors (233513223).

670407897 is a wasteful number, since it uses less digits than its factorization.

670407897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2510983.

The product of its (nonzero) digits is 592704, while the sum is 48.

The square root of 670407897 is about 25892.2362301907. The cubic root of 670407897 is about 875.2115502640.

The spelling of 670407897 in words is "six hundred seventy million, four hundred seven thousand, eight hundred ninety-seven".