86421113 has 2 divisors, whose sum is σ = 86421114. Its totient is φ = 86421112.

The previous prime is 86421091. The next prime is 86421119. The reversal of 86421113 is 31112468.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71031184 + 15389929 = 8428^2 + 3923^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86421113 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (86421119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43210556 + 43210557.

It is an arithmetic number, because the mean of its divisors is an integer number (43210557).

Almost surely, 2^86421113 is an apocalyptic number.

It is an amenable number.

86421113 is a deficient number, since it is larger than the sum of its proper divisors (1).

86421113 is an equidigital number, since it uses as much as digits as its factorization.

86421113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 26.

The square root of 86421113 is about 9296.2956601003. The cubic root of 86421113 is about 442.1197866064.

The spelling of 86421113 in words is "eighty-six million, four hundred twenty-one thousand, one hundred thirteen".