44666623 has 2 divisors, whose sum is σ = 44666624. Its totient is φ = 44666622.

The previous prime is 44666603. The next prime is 44666647. The reversal of 44666623 is 32666644.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44666623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44666603) 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 as a sum of consecutive naturals, namely, 22333311 + 22333312.

It is an arithmetic number, because the mean of its divisors is an integer number (22333312).

Almost surely, 2^44666623 is an apocalyptic number.

44666623 is a deficient number, since it is larger than the sum of its proper divisors (1).

44666623 is an equidigital number, since it uses as much as digits as its factorization.

44666623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 37.

The square root of 44666623 is about 6683.3092850773. The cubic root of 44666623 is about 354.8087920918.

The spelling of 44666623 in words is "forty-four million, six hundred sixty-six thousand, six hundred twenty-three".