44986391 has 2 divisors, whose sum is σ = 44986392. Its totient is φ = 44986390.

The previous prime is 44986351. The next prime is 44986393. The reversal of 44986391 is 19368944.

44986391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44986391 - 2⁶ = 44986327 is a prime.

It is a Sophie Germain prime.

Together with 44986393, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44986393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22493195 + 22493196.

It is an arithmetic number, because the mean of its divisors is an integer number (22493196).

Almost surely, 2^44986391 is an apocalyptic number.

44986391 is a deficient number, since it is larger than the sum of its proper divisors (1).

44986391 is an equidigital number, since it uses as much as digits as its factorization.

44986391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 44.

The square root of 44986391 is about 6707.1895008267. The cubic root of 44986391 is about 355.6534707146.

The spelling of 44986391 in words is "forty-four million, nine hundred eighty-six thousand, three hundred ninety-one".