649583423 has 8 divisors (see below), whose sum is σ = 662618448. Its totient is φ = 636577344.

The previous prime is 649583401. The next prime is 649583483. The reversal of 649583423 is 324385946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 649583423 - 2¹⁶ = 649517887 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 (649583483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41315 + ... + 54827.

It is an arithmetic number, because the mean of its divisors is an integer number (82827306).

Almost surely, 2^649583423 is an apocalyptic number.

649583423 is a deficient number, since it is larger than the sum of its proper divisors (13035025).

649583423 is a wasteful number, since it uses less digits than its factorization.

649583423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14473.

The product of its digits is 622080, while the sum is 44.

The square root of 649583423 is about 25486.9265114490. The cubic root of 649583423 is about 866.0540118001.

The spelling of 649583423 in words is "six hundred forty-nine million, five hundred eighty-three thousand, four hundred twenty-three".