87216119 has 4 divisors (see below), whose sum is σ = 87581280. Its totient is φ = 86850960.

The previous prime is 87216097. The next prime is 87216133. The reversal of 87216119 is 91161278.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87216119 is a prime.

It is a super-2 number, since 2×87216119² = 15213302826844322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87216149) 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, 182222 + ... + 182699.

It is an arithmetic number, because the mean of its divisors is an integer number (21895320).

Almost surely, 2^87216119 is an apocalyptic number.

87216119 is a deficient number, since it is larger than the sum of its proper divisors (365161).

87216119 is a wasteful number, since it uses less digits than its factorization.

87216119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365160.

The product of its digits is 6048, while the sum is 35.

The square root of 87216119 is about 9338.9570616852. The cubic root of 87216119 is about 443.4713681895.

It can be divided in two parts, 8 and 7216119, that added together give a palindrome (7216127).

The spelling of 87216119 in words is "eighty-seven million, two hundred sixteen thousand, one hundred nineteen".