86994833 has 2 divisors, whose sum is σ = 86994834. Its totient is φ = 86994832.

The previous prime is 86994779. The next prime is 86994839. The reversal of 86994833 is 33849968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73393489 + 13601344 = 8567^2 + 3688^2 .

It is a cyclic number.

It is not a de Polignac number, because 86994833 - 2²⁴ = 70217617 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (86994839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43497416 + 43497417.

It is an arithmetic number, because the mean of its divisors is an integer number (43497417).

Almost surely, 2^86994833 is an apocalyptic number.

It is an amenable number.

86994833 is a deficient number, since it is larger than the sum of its proper divisors (1).

86994833 is an equidigital number, since it uses as much as digits as its factorization.

86994833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 50.

The square root of 86994833 is about 9327.1020687028. The cubic root of 86994833 is about 443.0959898796.

The spelling of 86994833 in words is "eighty-six million, nine hundred ninety-four thousand, eight hundred thirty-three".