44397121 has 2 divisors, whose sum is σ = 44397122. Its totient is φ = 44397120.

The previous prime is 44397109. The next prime is 44397127. The reversal of 44397121 is 12179344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43086096 + 1311025 = 6564^2 + 1145^2 .

It is a cyclic number.

It is not a de Polignac number, because 44397121 - 2¹¹ = 44395073 is a prime.

It is a super-2 number, since 2×44397121² = 3942208706177282, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (44397127) 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, 22198560 + 22198561.

It is an arithmetic number, because the mean of its divisors is an integer number (22198561).

Almost surely, 2^44397121 is an apocalyptic number.

It is an amenable number.

44397121 is a deficient number, since it is larger than the sum of its proper divisors (1).

44397121 is an equidigital number, since it uses as much as digits as its factorization.

44397121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 44397121 is about 6663.1164630374. The cubic root of 44397121 is about 354.0937567532.

The spelling of 44397121 in words is "forty-four million, three hundred ninety-seven thousand, one hundred twenty-one".