87003775 has 6 divisors (see below), whose sum is σ = 107884712. Its totient is φ = 69603000.

The previous prime is 87003743. The next prime is 87003797. The reversal of 87003775 is 57730078.

It is not a de Polignac number, because 87003775 - 2⁵ = 87003743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1740051 + ... + 1740100.

Almost surely, 2^87003775 is an apocalyptic number.

87003775 is a deficient number, since it is larger than the sum of its proper divisors (20880937).

87003775 is a wasteful number, since it uses less digits than its factorization.

87003775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3480161 (or 3480156 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 87003775 is about 9327.5814121347. The cubic root of 87003775 is about 443.1111709674. Note that the first 4 decimals are identical.

It can be divided in two parts, 87003 and 775, that added together give a palindrome (87778).

The spelling of 87003775 in words is "eighty-seven million, three thousand, seven hundred seventy-five".