646514007 has 8 divisors (see below), whose sum is σ = 907388160. Its totient is φ = 408324600.

The previous prime is 646513993. The next prime is 646514039. The reversal of 646514007 is 700415646.

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

It is not a de Polignac number, because 646514007 - 2¹⁰ = 646512983 is a prime.

It is a super-2 number, since 2×646514007² = 835960722494392098, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646514807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5671119 + ... + 5671232.

It is an arithmetic number, because the mean of its divisors is an integer number (113423520).

Almost surely, 2^646514007 is an apocalyptic number.

646514007 is a deficient number, since it is larger than the sum of its proper divisors (260874153).

646514007 is a wasteful number, since it uses less digits than its factorization.

646514007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11342373.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 646514007 is about 25426.6397111376. The cubic root of 646514007 is about 864.6877628336.

The spelling of 646514007 in words is "six hundred forty-six million, five hundred fourteen thousand, seven".