86653663 has 2 divisors, whose sum is σ = 86653664. Its totient is φ = 86653662.

The previous prime is 86653613. The next prime is 86653669. The reversal of 86653663 is 36635668.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86653663 is a prime.

It is a super-2 number, since 2×86653663² = 15017714622635138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86653669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43326831 + 43326832.

It is an arithmetic number, because the mean of its divisors is an integer number (43326832).

Almost surely, 2^86653663 is an apocalyptic number.

86653663 is a deficient number, since it is larger than the sum of its proper divisors (1).

86653663 is an equidigital number, since it uses as much as digits as its factorization.

86653663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 43.

The square root of 86653663 is about 9308.7949273792. The cubic root of 86653663 is about 442.5159971660.

The spelling of 86653663 in words is "eighty-six million, six hundred fifty-three thousand, six hundred sixty-three".