44909857 has 2 divisors, whose sum is σ = 44909858. Its totient is φ = 44909856.

The previous prime is 44909779. The next prime is 44909861. The reversal of 44909857 is 75890944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44836416 + 73441 = 6696^2 + 271^2 .

It is a cyclic number.

It is not a de Polignac number, because 44909857 - 2¹⁵ = 44877089 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (44906857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22454928 + 22454929.

It is an arithmetic number, because the mean of its divisors is an integer number (22454929).

Almost surely, 2^44909857 is an apocalyptic number.

It is an amenable number.

44909857 is a deficient number, since it is larger than the sum of its proper divisors (1).

44909857 is an equidigital number, since it uses as much as digits as its factorization.

44909857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 44909857 is about 6701.4817018328. The cubic root of 44909857 is about 355.4516686979.

The spelling of 44909857 in words is "forty-four million, nine hundred nine thousand, eight hundred fifty-seven".