44199971 has 2 divisors, whose sum is σ = 44199972. Its totient is φ = 44199970.

The previous prime is 44199917. The next prime is 44199989. The reversal of 44199971 is 17999144.

It is a happy number.

Together with previous prime (44199917) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44199971 - 2¹⁸ = 43937827 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (44199671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22099985 + 22099986.

It is an arithmetic number, because the mean of its divisors is an integer number (22099986).

Almost surely, 2^44199971 is an apocalyptic number.

44199971 is a deficient number, since it is larger than the sum of its proper divisors (1).

44199971 is an equidigital number, since it uses as much as digits as its factorization.

44199971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 44.

The square root of 44199971 is about 6648.3058744315. The cubic root of 44199971 is about 353.5688490529.

The spelling of 44199971 in words is "forty-four million, one hundred ninety-nine thousand, nine hundred seventy-one".