87444115 has 8 divisors (see below), whose sum is σ = 114472368. Its totient is φ = 63595680.

The previous prime is 87444089. The next prime is 87444127. The reversal of 87444115 is 51144478.

It is a happy number.

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

It is not a de Polignac number, because 87444115 - 2¹⁷ = 87313043 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 794892 + ... + 795001.

It is an arithmetic number, because the mean of its divisors is an integer number (14309046).

Almost surely, 2^87444115 is an apocalyptic number.

87444115 is a deficient number, since it is larger than the sum of its proper divisors (27028253).

87444115 is a wasteful number, since it uses less digits than its factorization.

87444115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589909.

The product of its digits is 17920, while the sum is 34.

The square root of 87444115 is about 9351.1558109145. The cubic root of 87444115 is about 443.8574654754.

The spelling of 87444115 in words is "eighty-seven million, four hundred forty-four thousand, one hundred fifteen".