86590939 has 2 divisors, whose sum is σ = 86590940. Its totient is φ = 86590938.

The previous prime is 86590919. The next prime is 86590951. The reversal of 86590939 is 93909568.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86590939 - 2¹¹ = 86588891 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 86590892 and 86590901.

It is not a weakly prime, because it can be changed into another prime (86590919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43295469 + 43295470.

It is an arithmetic number, because the mean of its divisors is an integer number (43295470).

Almost surely, 2^86590939 is an apocalyptic number.

86590939 is a deficient number, since it is larger than the sum of its proper divisors (1).

86590939 is an equidigital number, since it uses as much as digits as its factorization.

86590939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 86590939 is about 9305.4252455221. The cubic root of 86590939 is about 442.4092000911.

The spelling of 86590939 in words is "eighty-six million, five hundred ninety thousand, nine hundred thirty-nine".