44999987 has 4 divisors (see below), whose sum is σ = 45269616. Its totient is φ = 44730360.

The previous prime is 44999971. The next prime is 45000017. The reversal of 44999987 is 78999944.

It is a happy number.

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 44999987 - 2⁴ = 44999971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44990987) 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, 134564 + ... + 134897.

It is an arithmetic number, because the mean of its divisors is an integer number (11317404).

Almost surely, 2^44999987 is an apocalyptic number.

44999987 is a deficient number, since it is larger than the sum of its proper divisors (269629).

44999987 is a wasteful number, since it uses less digits than its factorization.

44999987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269628.

The product of its digits is 5878656, while the sum is 59.

The square root of 44999987 is about 6708.2029635365. The cubic root of 44999987 is about 355.6892961974.

The spelling of 44999987 in words is "forty-four million, nine hundred ninety-nine thousand, nine hundred eighty-seven".