646460014 has 4 divisors (see below), whose sum is σ = 969690024. Its totient is φ = 323230006.

The previous prime is 646459973. The next prime is 646460051. The reversal of 646460014 is 410064646.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 161615002 + ... + 161615005.

It is an arithmetic number, because the mean of its divisors is an integer number (242422506).

Almost surely, 2^646460014 is an apocalyptic number.

646460014 is a deficient number, since it is larger than the sum of its proper divisors (323230010).

646460014 is a wasteful number, since it uses less digits than its factorization.

646460014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323230009.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 646460014 is about 25425.5779482001. The cubic root of 646460014 is about 864.6636909725.

The spelling of 646460014 in words is "six hundred forty-six million, four hundred sixty thousand, fourteen".