8964391 has 2 divisors, whose sum is σ = 8964392. Its totient is φ = 8964390.

The previous prime is 8964383. The next prime is 8964407. The reversal of 8964391 is 1934698.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8964391 - 2³ = 8964383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8964311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4482195 + 4482196.

It is an arithmetic number, because the mean of its divisors is an integer number (4482196).

Almost surely, 2^8964391 is an apocalyptic number.

8964391 is a deficient number, since it is larger than the sum of its proper divisors (1).

8964391 is an equidigital number, since it uses as much as digits as its factorization.

8964391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 40.

The square root of 8964391 is about 2994.0592846502. The cubic root of 8964391 is about 207.7336874640.

The spelling of 8964391 in words is "eight million, nine hundred sixty-four thousand, three hundred ninety-one".