646262023 has 4 divisors (see below), whose sum is σ = 705013128. Its totient is φ = 587510920.

The previous prime is 646262011. The next prime is 646262033. The reversal of 646262023 is 320262646.

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

It is a cyclic number.

It is not a de Polignac number, because 646262023 - 2²⁹ = 109391111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646262003) 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 3 ways as a sum of consecutive naturals, for example, 29375536 + ... + 29375557.

It is an arithmetic number, because the mean of its divisors is an integer number (176253282).

Almost surely, 2^646262023 is an apocalyptic number.

646262023 is a deficient number, since it is larger than the sum of its proper divisors (58751105).

646262023 is a wasteful number, since it uses less digits than its factorization.

646262023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58751104.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 646262023 is about 25421.6841102237. The cubic root of 646262023 is about 864.5754085805.

The spelling of 646262023 in words is "six hundred forty-six million, two hundred sixty-two thousand, twenty-three".