86217023 has 2 divisors, whose sum is σ = 86217024. Its totient is φ = 86217022.

The previous prime is 86216981. The next prime is 86217031. The reversal of 86217023 is 32071268.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86217023 - 2¹⁶ = 86151487 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86217083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43108511 + 43108512.

It is an arithmetic number, because the mean of its divisors is an integer number (43108512).

Almost surely, 2^86217023 is an apocalyptic number.

86217023 is a deficient number, since it is larger than the sum of its proper divisors (1).

86217023 is an equidigital number, since it uses as much as digits as its factorization.

86217023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 86217023 is about 9285.3122187679. The cubic root of 86217023 is about 441.7714791634.

The spelling of 86217023 in words is "eighty-six million, two hundred seventeen thousand, twenty-three".