87312283 has 2 divisors, whose sum is σ = 87312284. Its totient is φ = 87312282.

The previous prime is 87312263. The next prime is 87312311. The reversal of 87312283 is 38221378.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87312283 - 2⁹ = 87311771 is a prime.

It is not a weakly prime, because it can be changed into another prime (87312263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43656141 + 43656142.

It is an arithmetic number, because the mean of its divisors is an integer number (43656142).

Almost surely, 2^87312283 is an apocalyptic number.

87312283 is a deficient number, since it is larger than the sum of its proper divisors (1).

87312283 is an equidigital number, since it uses as much as digits as its factorization.

87312283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 34.

The square root of 87312283 is about 9344.1041839226. The cubic root of 87312283 is about 443.6342979972.

The spelling of 87312283 in words is "eighty-seven million, three hundred twelve thousand, two hundred eighty-three".