86969843 has 2 divisors, whose sum is σ = 86969844. Its totient is φ = 86969842.

The previous prime is 86969833. The next prime is 86969879. The reversal of 86969843 is 34896968.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86969843 - 2⁸ = 86969587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86969833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43484921 + 43484922.

It is an arithmetic number, because the mean of its divisors is an integer number (43484922).

Almost surely, 2^86969843 is an apocalyptic number.

86969843 is a deficient number, since it is larger than the sum of its proper divisors (1).

86969843 is an equidigital number, since it uses as much as digits as its factorization.

86969843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 53.

The square root of 86969843 is about 9325.7623280888. The cubic root of 86969843 is about 443.0535581288.

The spelling of 86969843 in words is "eighty-six million, nine hundred sixty-nine thousand, eight hundred forty-three".