44087521 has 8 divisors (see below), whose sum is σ = 44971200. Its totient is φ = 43211280.

The previous prime is 44087507. The next prime is 44087591. The reversal of 44087521 is 12578044.

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

It is a cyclic number.

It is not a de Polignac number, because 44087521 - 2⁹ = 44087009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44087591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10975 + ... + 14443.

It is an arithmetic number, because the mean of its divisors is an integer number (5621400).

Almost surely, 2^44087521 is an apocalyptic number.

It is an amenable number.

44087521 is a deficient number, since it is larger than the sum of its proper divisors (883679).

44087521 is a wasteful number, since it uses less digits than its factorization.

44087521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3719.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 44087521 is about 6639.8434469496. The cubic root of 44087521 is about 353.2687539701.

It can be divided in two parts, 440875 and 21, that added together give a square (440896 = 664²).

The spelling of 44087521 in words is "forty-four million, eighty-seven thousand, five hundred twenty-one".