646130967 has 16 divisors (see below), whose sum is σ = 918336000. Its totient is φ = 402914304.

The previous prime is 646130939. The next prime is 646130983. The reversal of 646130967 is 769031646.

It is not a de Polignac number, because 646130967 - 2⁷ = 646130839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646130987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67242 + ... + 76247.

It is an arithmetic number, because the mean of its divisors is an integer number (57396000).

Almost surely, 2^646130967 is an apocalyptic number.

646130967 is a deficient number, since it is larger than the sum of its proper divisors (272205033).

646130967 is a wasteful number, since it uses less digits than its factorization.

646130967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143590.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 646130967 is about 25419.1063375564. The cubic root of 646130967 is about 864.5169619800.

The spelling of 646130967 in words is "six hundred forty-six million, one hundred thirty thousand, nine hundred sixty-seven".