44639971 has 2 divisors, whose sum is σ = 44639972. Its totient is φ = 44639970.

The previous prime is 44639957. The next prime is 44639993. The reversal of 44639971 is 17993644.

44639971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44639971 - 2⁷ = 44639843 is a prime.

It is not a weakly prime, because it can be changed into another prime (44639951) 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, 22319985 + 22319986.

It is an arithmetic number, because the mean of its divisors is an integer number (22319986).

Almost surely, 2^44639971 is an apocalyptic number.

44639971 is a deficient number, since it is larger than the sum of its proper divisors (1).

44639971 is an equidigital number, since it uses as much as digits as its factorization.

44639971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 43.

The square root of 44639971 is about 6681.3150651649. The cubic root of 44639971 is about 354.7382081020.

The spelling of 44639971 in words is "forty-four million, six hundred thirty-nine thousand, nine hundred seventy-one".