44997881 has 4 divisors (see below), whose sum is σ = 45233664. Its totient is φ = 44762100.

The previous prime is 44997863. The next prime is 44997889. The reversal of 44997881 is 18879944.

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 44997881 - 2⁶ = 44997817 is a prime.

It is a super-3 number, since 3×44997881³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44997889) 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, 117605 + ... + 117986.

It is an arithmetic number, because the mean of its divisors is an integer number (11308416).

Almost surely, 2^44997881 is an apocalyptic number.

It is an amenable number.

44997881 is a deficient number, since it is larger than the sum of its proper divisors (235783).

44997881 is a wasteful number, since it uses less digits than its factorization.

44997881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235782.

The product of its digits is 580608, while the sum is 50.

The square root of 44997881 is about 6708.0459897052. The cubic root of 44997881 is about 355.6837473563.

The spelling of 44997881 in words is "forty-four million, nine hundred ninety-seven thousand, eight hundred eighty-one".