44157979 has 2 divisors, whose sum is σ = 44157980. Its totient is φ = 44157978.

The previous prime is 44157931. The next prime is 44158001. The reversal of 44157979 is 97975144.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44157979 - 2¹¹ = 44155931 is a prime.

It is not a weakly prime, because it can be changed into another prime (44157929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22078989 + 22078990.

It is an arithmetic number, because the mean of its divisors is an integer number (22078990).

Almost surely, 2^44157979 is an apocalyptic number.

44157979 is a deficient number, since it is larger than the sum of its proper divisors (1).

44157979 is an equidigital number, since it uses as much as digits as its factorization.

44157979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 46.

The square root of 44157979 is about 6645.1470262139. The cubic root of 44157979 is about 353.4568447005.

The spelling of 44157979 in words is "forty-four million, one hundred fifty-seven thousand, nine hundred seventy-nine".