87477365 has 4 divisors (see below), whose sum is σ = 104972844. Its totient is φ = 69981888.

The previous prime is 87477343. The next prime is 87477409. The reversal of 87477365 is 56377478.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9296401 + 78180964 = 3049^2 + 8842^2 .

It is a cyclic number.

It is not a de Polignac number, because 87477365 - 2⁸ = 87477109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8747732 + ... + 8747741.

It is an arithmetic number, because the mean of its divisors is an integer number (26243211).

Almost surely, 2^87477365 is an apocalyptic number.

It is an amenable number.

87477365 is a deficient number, since it is larger than the sum of its proper divisors (17495479).

87477365 is a wasteful number, since it uses less digits than its factorization.

87477365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17495478.

The product of its digits is 987840, while the sum is 47.

The square root of 87477365 is about 9352.9334970372. The cubic root of 87477365 is about 443.9137162231.

The spelling of 87477365 in words is "eighty-seven million, four hundred seventy-seven thousand, three hundred sixty-five".