646034086 has 32 divisors (see below), whose sum is σ = 1038320640. Its totient is φ = 300573504.

The previous prime is 646034057. The next prime is 646034087. The reversal of 646034086 is 680430646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646034087) 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 15 ways as a sum of consecutive naturals, for example, 1284111 + ... + 1284613.

It is an arithmetic number, because the mean of its divisors is an integer number (32447520).

Almost surely, 2^646034086 is an apocalyptic number.

646034086 is a deficient number, since it is larger than the sum of its proper divisors (392286554).

646034086 is a wasteful number, since it uses less digits than its factorization.

646034086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 646034086 is about 25417.2005932990. The cubic root of 646034086 is about 864.4737512077.

The spelling of 646034086 in words is "six hundred forty-six million, thirty-four thousand, eighty-six".