44656643 has 2 divisors, whose sum is σ = 44656644. Its totient is φ = 44656642.

The previous prime is 44656571. The next prime is 44656681. The reversal of 44656643 is 34665644.

It is a happy number.

It is an a-pointer prime, because the next prime (44656681) can be obtained adding 44656643 to its sum of digits (38).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44656643 - 2⁸ = 44656387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44656597 and 44656606.

It is not a weakly prime, because it can be changed into another prime (44656043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22328321 + 22328322.

It is an arithmetic number, because the mean of its divisors is an integer number (22328322).

Almost surely, 2^44656643 is an apocalyptic number.

44656643 is a deficient number, since it is larger than the sum of its proper divisors (1).

44656643 is an equidigital number, since it uses as much as digits as its factorization.

44656643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 38.

The square root of 44656643 is about 6682.5626072638. The cubic root of 44656643 is about 354.7823647861.

Subtracting from 44656643 its reverse (34665644), we obtain a palindrome (9990999).

The spelling of 44656643 in words is "forty-four million, six hundred fifty-six thousand, six hundred forty-three".