87855299 has 4 divisors (see below), whose sum is σ = 100406064. Its totient is φ = 75304536.

The previous prime is 87855277. The next prime is 87855319. The reversal of 87855299 is 99255878.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99255878 = 2 ⋅49627939.

It is a cyclic number.

It is not a de Polignac number, because 87855299 - 2⁸ = 87855043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87855299.

It is not an unprimeable number, because it can be changed into a prime (87845299) 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, 6275372 + ... + 6275385.

It is an arithmetic number, because the mean of its divisors is an integer number (25101516).

Almost surely, 2^87855299 is an apocalyptic number.

87855299 is a deficient number, since it is larger than the sum of its proper divisors (12550765).

87855299 is a wasteful number, since it uses less digits than its factorization.

87855299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12550764.

The product of its digits is 1814400, while the sum is 53.

The square root of 87855299 is about 9373.1157573136. The cubic root of 87855299 is about 444.5520872860.

The spelling of 87855299 in words is "eighty-seven million, eight hundred fifty-five thousand, two hundred ninety-nine".