86573737 has 2 divisors, whose sum is σ = 86573738. Its totient is φ = 86573736.

The previous prime is 86573719. The next prime is 86573777. The reversal of 86573737 is 73737568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78570496 + 8003241 = 8864^2 + 2829^2 .

It is a cyclic number.

It is not a de Polignac number, because 86573737 - 2¹¹ = 86571689 is a prime.

It is not a weakly prime, because it can be changed into another prime (86573777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43286868 + 43286869.

It is an arithmetic number, because the mean of its divisors is an integer number (43286869).

Almost surely, 2^86573737 is an apocalyptic number.

It is an amenable number.

86573737 is a deficient number, since it is larger than the sum of its proper divisors (1).

86573737 is an equidigital number, since it uses as much as digits as its factorization.

86573737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 740880, while the sum is 46.

The square root of 86573737 is about 9304.5009001021. The cubic root of 86573737 is about 442.3799020793.

The spelling of 86573737 in words is "eighty-six million, five hundred seventy-three thousand, seven hundred thirty-seven".