44799991 has 4 divisors (see below), whose sum is σ = 46245184. Its totient is φ = 43354800.

The previous prime is 44799973. The next prime is 44800001. The reversal of 44799991 is 19999744.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 44799991 - 2¹¹ = 44797943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44799901) 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, 722550 + ... + 722611.

It is an arithmetic number, because the mean of its divisors is an integer number (11561296).

Almost surely, 2^44799991 is an apocalyptic number.

44799991 is a deficient number, since it is larger than the sum of its proper divisors (1445193).

44799991 is a wasteful number, since it uses less digits than its factorization.

44799991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445192.

The product of its digits is 734832, while the sum is 52.

The square root of 44799991 is about 6693.2795399565. The cubic root of 44799991 is about 355.1615769139.

The spelling of 44799991 in words is "forty-four million, seven hundred ninety-nine thousand, nine hundred ninety-one".