44799891 has 8 divisors (see below), whose sum is σ = 62877120. Its totient is φ = 28294632.

The previous prime is 44799889. The next prime is 44799901. The reversal of 44799891 is 19899744.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44799891 - 2¹ = 44799889 is a prime.

It is a super-2 number, since 2×44799891² = 4014060467223762, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (44799871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392925 + ... + 393038.

It is an arithmetic number, because the mean of its divisors is an integer number (7859640).

Almost surely, 2^44799891 is an apocalyptic number.

44799891 is a deficient number, since it is larger than the sum of its proper divisors (18077229).

44799891 is a wasteful number, since it uses less digits than its factorization.

44799891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785985.

The product of its digits is 653184, while the sum is 51.

The square root of 44799891 is about 6693.2720697728. The cubic root of 44799891 is about 355.1613126565.

The spelling of 44799891 in words is "forty-four million, seven hundred ninety-nine thousand, eight hundred ninety-one".