44987789 has 32 divisors (see below), whose sum is σ = 59277312. Its totient is φ = 33120000.

The previous prime is 44987779. The next prime is 44987843. The reversal of 44987789 is 98778944.

It is a cyclic number.

It is not a de Polignac number, because 44987789 - 2⁴ = 44987773 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44987749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111989 + ... + 112389.

It is an arithmetic number, because the mean of its divisors is an integer number (1852416).

Almost surely, 2^44987789 is an apocalyptic number.

It is an amenable number.

44987789 is a deficient number, since it is larger than the sum of its proper divisors (14289523).

44987789 is a wasteful number, since it uses less digits than its factorization.

44987789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497.

The product of its digits is 4064256, while the sum is 56.

The square root of 44987789 is about 6707.2937165447. The cubic root of 44987789 is about 355.6571547799.

The spelling of 44987789 in words is "forty-four million, nine hundred eighty-seven thousand, seven hundred eighty-nine".