671268907 has 4 divisors (see below), whose sum is σ = 672192976. Its totient is φ = 670344840.

The previous prime is 671268893. The next prime is 671268943. The reversal of 671268907 is 709862176.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671268907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671268967) 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, 460944 + ... + 462397.

It is an arithmetic number, because the mean of its divisors is an integer number (168048244).

Almost surely, 2^671268907 is an apocalyptic number.

671268907 is a deficient number, since it is larger than the sum of its proper divisors (924069).

671268907 is an equidigital number, since it uses as much as digits as its factorization.

671268907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924068.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 671268907 is about 25908.8576938467. The cubic root of 671268907 is about 875.5860702772.

The spelling of 671268907 in words is "six hundred seventy-one million, two hundred sixty-eight thousand, nine hundred seven".