641983223 has 16 divisors (see below), whose sum is σ = 791519040. Its totient is φ = 508125696.

The previous prime is 641983211. The next prime is 641983259. The reversal of 641983223 is 322389146.

It is a cyclic number.

It is not a de Polignac number, because 641983223 - 2⁶ = 641983159 is a prime.

It is a super-2 number, since 2×641983223² = 824284917226935458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641983273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44588 + ... + 57201.

It is an arithmetic number, because the mean of its divisors is an integer number (49469940).

Almost surely, 2^641983223 is an apocalyptic number.

641983223 is a deficient number, since it is larger than the sum of its proper divisors (149535817).

641983223 is a wasteful number, since it uses less digits than its factorization.

641983223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101866.

The product of its digits is 62208, while the sum is 38.

The square root of 641983223 is about 25337.3878487898. The cubic root of 641983223 is about 862.6631090528.

The spelling of 641983223 in words is "six hundred forty-one million, nine hundred eighty-three thousand, two hundred twenty-three".