646471083 has 16 divisors (see below), whose sum is σ = 879500160. Its totient is φ = 422260416.

The previous prime is 646471081. The next prime is 646471109. The reversal of 646471083 is 380174646.

646471083 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 646471083 - 2¹ = 646471081 is a prime.

It is a super-2 number, since 2×646471083² = 835849722310385778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (646471081) 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, 48391 + ... + 60287.

It is an arithmetic number, because the mean of its divisors is an integer number (54968760).

Almost surely, 2^646471083 is an apocalyptic number.

646471083 is a deficient number, since it is larger than the sum of its proper divisors (233029077).

646471083 is a wasteful number, since it uses less digits than its factorization.

646471083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12266.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 646471083 is about 25425.7956217696. The cubic root of 646471083 is about 864.6686260072.

The spelling of 646471083 in words is "six hundred forty-six million, four hundred seventy-one thousand, eighty-three".