44639797 has 8 divisors (see below), whose sum is σ = 48260000. Its totient is φ = 41146704.

The previous prime is 44639789. The next prime is 44639821. The reversal of 44639797 is 79793644.

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

It is not a de Polignac number, because 44639797 - 2³ = 44639789 is a prime.

It is a super-2 number, since 2×44639797² = 3985422952402418, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 44639797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44639717) 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, 31047 + ... + 32452.

It is an arithmetic number, because the mean of its divisors is an integer number (6032500).

Almost surely, 2^44639797 is an apocalyptic number.

It is an amenable number.

44639797 is a deficient number, since it is larger than the sum of its proper divisors (3620203).

44639797 is a wasteful number, since it uses less digits than its factorization.

44639797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63555.

The product of its digits is 1143072, while the sum is 49.

The square root of 44639797 is about 6681.3020437636. The cubic root of 44639797 is about 354.7377471957.

The spelling of 44639797 in words is "forty-four million, six hundred thirty-nine thousand, seven hundred ninety-seven".