86888393 has 2 divisors, whose sum is σ = 86888394. Its totient is φ = 86888392.

The previous prime is 86888371. The next prime is 86888401. The reversal of 86888393 is 39388868.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44729344 + 42159049 = 6688^2 + 6493^2 .

It is a cyclic number.

It is not a de Polignac number, because 86888393 - 2¹⁸ = 86626249 is a prime.

It is not a weakly prime, because it can be changed into another prime (86888303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43444196 + 43444197.

It is an arithmetic number, because the mean of its divisors is an integer number (43444197).

Almost surely, 2^86888393 is an apocalyptic number.

It is an amenable number.

86888393 is a deficient number, since it is larger than the sum of its proper divisors (1).

86888393 is an equidigital number, since it uses as much as digits as its factorization.

86888393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1990656, while the sum is 53.

The square root of 86888393 is about 9321.3943699427. The cubic root of 86888393 is about 442.9152037200.

The spelling of 86888393 in words is "eighty-six million, eight hundred eighty-eight thousand, three hundred ninety-three".