44509997 has 4 divisors (see below), whose sum is σ = 50868576. Its totient is φ = 38151420.

The previous prime is 44509981. The next prime is 44509999. The reversal of 44509997 is 79990544.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44509997 - 2⁴ = 44509981 is a prime.

It is a super-2 number, since 2×44509997² = 3962279665880018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44509999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3179279 + ... + 3179292.

It is an arithmetic number, because the mean of its divisors is an integer number (12717144).

Almost surely, 2^44509997 is an apocalyptic number.

It is an amenable number.

44509997 is a deficient number, since it is larger than the sum of its proper divisors (6358579).

44509997 is an equidigital number, since it uses as much as digits as its factorization.

44509997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6358578.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 44509997 is about 6671.5812968141. The cubic root of 44509997 is about 354.3935874734.

The spelling of 44509997 in words is "forty-four million, five hundred nine thousand, nine hundred ninety-seven".