87800387 has 4 divisors (see below), whose sum is σ = 92421480. Its totient is φ = 83179296.

The previous prime is 87800381. The next prime is 87800389. The reversal of 87800387 is 78300878.

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

It is a cyclic number.

It is not a de Polignac number, because 87800387 - 2²⁴ = 71023171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87800381) 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, 2310518 + ... + 2310555.

It is an arithmetic number, because the mean of its divisors is an integer number (23105370).

Almost surely, 2^87800387 is an apocalyptic number.

87800387 is a deficient number, since it is larger than the sum of its proper divisors (4621093).

87800387 is a wasteful number, since it uses less digits than its factorization.

87800387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4621092.

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 87800387 is about 9370.1860707245. The cubic root of 87800387 is about 444.4594488522.

The spelling of 87800387 in words is "eighty-seven million, eight hundred thousand, three hundred eighty-seven".