646294701 has 24 divisors (see below), whose sum is σ = 937287936. Its totient is φ = 395940480.

The previous prime is 646294669. The next prime is 646294703. The reversal of 646294701 is 107492646.

It is a happy number.

646294701 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 646294701 - 2⁵ = 646294669 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 646294701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646294703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115396 + ... + 120866.

It is an arithmetic number, because the mean of its divisors is an integer number (39053664).

Almost surely, 2^646294701 is an apocalyptic number.

It is an amenable number.

646294701 is a deficient number, since it is larger than the sum of its proper divisors (290993235).

646294701 is a wasteful number, since it uses less digits than its factorization.

646294701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5733 (or 5720 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 646294701 is about 25422.3268211232. The cubic root of 646294701 is about 864.5899806468.

The spelling of 646294701 in words is "six hundred forty-six million, two hundred ninety-four thousand, seven hundred one".