87044023 has 4 divisors (see below), whose sum is σ = 94957128. Its totient is φ = 79130920.

The previous prime is 87044003. The next prime is 87044033. The reversal of 87044023 is 32044078.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 87044023 - 2¹³ = 87035831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87043982 and 87044000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87044003) 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, 3956536 + ... + 3956557.

It is an arithmetic number, because the mean of its divisors is an integer number (23739282).

Almost surely, 2^87044023 is an apocalyptic number.

87044023 is a deficient number, since it is larger than the sum of its proper divisors (7913105).

87044023 is a wasteful number, since it uses less digits than its factorization.

87044023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7913104.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 87044023 is about 9329.7386351387. The cubic root of 87044023 is about 443.1794882676.

Subtracting from 87044023 its reverse (32044078), we obtain a palindrome (54999945).

The spelling of 87044023 in words is "eighty-seven million, forty-four thousand, twenty-three".