44816689 has 2 divisors, whose sum is σ = 44816690. Its totient is φ = 44816688.

The previous prime is 44816683. The next prime is 44816699. The reversal of 44816689 is 98661844.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43296400 + 1520289 = 6580^2 + 1233^2 .

It is a cyclic number.

It is not a de Polignac number, because 44816689 - 2²³ = 36428081 is a prime.

It is a super-2 number, since 2×44816689² = 4017071225845442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (44816683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22408344 + 22408345.

It is an arithmetic number, because the mean of its divisors is an integer number (22408345).

Almost surely, 2^44816689 is an apocalyptic number.

It is an amenable number.

44816689 is a deficient number, since it is larger than the sum of its proper divisors (1).

44816689 is an equidigital number, since it uses as much as digits as its factorization.

44816689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 46.

The square root of 44816689 is about 6694.5267943298. The cubic root of 44816689 is about 355.2056970965.

The spelling of 44816689 in words is "forty-four million, eight hundred sixteen thousand, six hundred eighty-nine".