86898971 has 2 divisors, whose sum is σ = 86898972. Its totient is φ = 86898970.

The previous prime is 86898949. The next prime is 86898979. The reversal of 86898971 is 17989868.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86898971 - 2⁶ = 86898907 is a prime.

It is not a weakly prime, because it can be changed into another prime (86898979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43449485 + 43449486.

It is an arithmetic number, because the mean of its divisors is an integer number (43449486).

Almost surely, 2^86898971 is an apocalyptic number.

86898971 is a deficient number, since it is larger than the sum of its proper divisors (1).

86898971 is an equidigital number, since it uses as much as digits as its factorization.

86898971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 56.

The square root of 86898971 is about 9321.9617570552. The cubic root of 86898971 is about 442.9331768414.

The spelling of 86898971 in words is "eighty-six million, eight hundred ninety-eight thousand, nine hundred seventy-one".