9864091 has 2 divisors, whose sum is σ = 9864092. Its totient is φ = 9864090.

The previous prime is 9864083. The next prime is 9864119. The reversal of 9864091 is 1904689.

9864091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9864091 - 2³ = 9864083 is a prime.

9864091 is a lucky number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 9864091.

It is not a weakly prime, because it can be changed into another prime (9864011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4932045 + 4932046.

It is an arithmetic number, because the mean of its divisors is an integer number (4932046).

Almost surely, 2^9864091 is an apocalyptic number.

9864091 is a deficient number, since it is larger than the sum of its proper divisors (1).

9864091 is an equidigital number, since it uses as much as digits as its factorization.

9864091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 9864091 is about 3140.7150459728. The cubic root of 9864091 is about 214.4629900847.

The spelling of 9864091 in words is "nine million, eight hundred sixty-four thousand, ninety-one".