64441941 has 4 divisors (see below), whose sum is σ = 85922592. Its totient is φ = 42961292.

The previous prime is 64441933. The next prime is 64441961. The reversal of 64441941 is 14914446.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64441941 - 2³ = 64441933 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64441961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10740321 + ... + 10740326.

It is an arithmetic number, because the mean of its divisors is an integer number (21480648).

Almost surely, 2^64441941 is an apocalyptic number.

It is an amenable number.

64441941 is a deficient number, since it is larger than the sum of its proper divisors (21480651).

64441941 is a wasteful number, since it uses less digits than its factorization.

64441941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21480650.

The product of its digits is 13824, while the sum is 33.

The square root of 64441941 is about 8027.5737928717. The cubic root of 64441941 is about 400.9185992404.

It can be divided in two parts, 6444 and 1941, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 64441941 in words is "sixty-four million, four hundred forty-one thousand, nine hundred forty-one".