44988987 has 16 divisors (see below), whose sum is σ = 64104480. Its totient is φ = 27965952.

The previous prime is 44988971. The next prime is 44988991. The reversal of 44988987 is 78988944.

It is not a de Polignac number, because 44988987 - 2⁴ = 44988971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44988187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1513 + ... + 9605.

It is an arithmetic number, because the mean of its divisors is an integer number (4006530).

Almost surely, 2^44988987 is an apocalyptic number.

44988987 is a deficient number, since it is larger than the sum of its proper divisors (19115493).

44988987 is a wasteful number, since it uses less digits than its factorization.

44988987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8222.

The product of its digits is 4644864, while the sum is 57.

The square root of 44988987 is about 6707.3830217157. The cubic root of 44988987 is about 355.6603117364.

The spelling of 44988987 in words is "forty-four million, nine hundred eighty-eight thousand, nine hundred eighty-seven".