86625593 has 2 divisors, whose sum is σ = 86625594. Its totient is φ = 86625592.

The previous prime is 86625589. The next prime is 86625599. The reversal of 86625593 is 39552668.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74874409 + 11751184 = 8653^2 + 3428^2 .

It is a cyclic number.

It is not a de Polignac number, because 86625593 - 2² = 86625589 is a prime.

It is not a weakly prime, because it can be changed into another prime (86625599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43312796 + 43312797.

It is an arithmetic number, because the mean of its divisors is an integer number (43312797).

Almost surely, 2^86625593 is an apocalyptic number.

It is an amenable number.

86625593 is a deficient number, since it is larger than the sum of its proper divisors (1).

86625593 is an equidigital number, since it uses as much as digits as its factorization.

86625593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 44.

The square root of 86625593 is about 9307.2870913065. The cubic root of 86625593 is about 442.4682101286.

The spelling of 86625593 in words is "eighty-six million, six hundred twenty-five thousand, five hundred ninety-three".