87408775 has 6 divisors (see below), whose sum is σ = 108386912. Its totient is φ = 69927000.

The previous prime is 87408709. The next prime is 87408779. The reversal of 87408775 is 57780478.

It is not a de Polignac number, because 87408775 - 2⁷ = 87408647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87408779) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1748151 + ... + 1748200.

Almost surely, 2^87408775 is an apocalyptic number.

87408775 is a deficient number, since it is larger than the sum of its proper divisors (20978137).

87408775 is a wasteful number, since it uses less digits than its factorization.

87408775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3496361 (or 3496356 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 46.

The square root of 87408775 is about 9349.2660139714. The cubic root of 87408775 is about 443.7976633323.

The spelling of 87408775 in words is "eighty-seven million, four hundred eight thousand, seven hundred seventy-five".