44645387 has 2 divisors, whose sum is σ = 44645388. Its totient is φ = 44645386.

The previous prime is 44645357. The next prime is 44645389. The reversal of 44645387 is 78354644.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44645387 is a prime.

Together with 44645389, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (44645389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22322693 + 22322694.

It is an arithmetic number, because the mean of its divisors is an integer number (22322694).

Almost surely, 2^44645387 is an apocalyptic number.

44645387 is a deficient number, since it is larger than the sum of its proper divisors (1).

44645387 is an equidigital number, since it uses as much as digits as its factorization.

44645387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 41.

The square root of 44645387 is about 6681.7203623019. The cubic root of 44645387 is about 354.7525538733.

The spelling of 44645387 in words is "forty-four million, six hundred forty-five thousand, three hundred eighty-seven".