86423537 has 2 divisors, whose sum is σ = 86423538. Its totient is φ = 86423536.

The previous prime is 86423521. The next prime is 86423569. The reversal of 86423537 is 73532468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86415616 + 7921 = 9296^2 + 89^2 .

It is a cyclic number.

It is not a de Polignac number, because 86423537 - 2⁴ = 86423521 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86423537.

It is not a weakly prime, because it can be changed into another prime (86423587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43211768 + 43211769.

It is an arithmetic number, because the mean of its divisors is an integer number (43211769).

Almost surely, 2^86423537 is an apocalyptic number.

It is an amenable number.

86423537 is a deficient number, since it is larger than the sum of its proper divisors (1).

86423537 is an equidigital number, since it uses as much as digits as its factorization.

86423537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 38.

The square root of 86423537 is about 9296.4260336970. The cubic root of 86423537 is about 442.1239201964.

The spelling of 86423537 in words is "eighty-six million, four hundred twenty-three thousand, five hundred thirty-seven".