646476083 has 16 divisors (see below), whose sum is σ = 744576000. Its totient is φ = 555115680.

The previous prime is 646476067. The next prime is 646476107. The reversal of 646476083 is 380674646.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 646476083 - 2⁴ = 646476067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (646476013) 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, 68510 + ... + 77372.

It is an arithmetic number, because the mean of its divisors is an integer number (46536000).

Almost surely, 2^646476083 is an apocalyptic number.

646476083 is a deficient number, since it is larger than the sum of its proper divisors (98099917).

646476083 is a wasteful number, since it uses less digits than its factorization.

646476083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9242.

The product of its (nonzero) digits is 580608, while the sum is 44.

The square root of 646476083 is about 25425.8939469195. The cubic root of 646476083 is about 864.6708552031.

The spelling of 646476083 in words is "six hundred forty-six million, four hundred seventy-six thousand, eighty-three".