87116233 has 2 divisors, whose sum is σ = 87116234. Its totient is φ = 87116232.

The previous prime is 87116207. The next prime is 87116251. The reversal of 87116233 is 33261178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79067664 + 8048569 = 8892^2 + 2837^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87116233 is a prime.

It is a super-2 number, since 2×87116233² = 15178476104220578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87116195 and 87116204.

It is not a weakly prime, because it can be changed into another prime (87116933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43558116 + 43558117.

It is an arithmetic number, because the mean of its divisors is an integer number (43558117).

Almost surely, 2^87116233 is an apocalyptic number.

It is an amenable number.

87116233 is a deficient number, since it is larger than the sum of its proper divisors (1).

87116233 is an equidigital number, since it uses as much as digits as its factorization.

87116233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 87116233 is about 9333.6077162049. The cubic root of 87116233 is about 443.3020053742.

The spelling of 87116233 in words is "eighty-seven million, one hundred sixteen thousand, two hundred thirty-three".