4936391 has 2 divisors, whose sum is σ = 4936392. Its totient is φ = 4936390.

The previous prime is 4936381. The next prime is 4936411. The reversal of 4936391 is 1936394.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4936391 is a prime.

It is a super-2 number, since 2×4936391² = 48735912209762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4936301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2468195 + 2468196.

It is an arithmetic number, because the mean of its divisors is an integer number (2468196).

Almost surely, 2^4936391 is an apocalyptic number.

4936391 is a deficient number, since it is larger than the sum of its proper divisors (1).

4936391 is an equidigital number, since it uses as much as digits as its factorization.

4936391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 35.

The square root of 4936391 is about 2221.7990458185. The cubic root of 4936391 is about 170.2693653522.

The spelling of 4936391 in words is "four million, nine hundred thirty-six thousand, three hundred ninety-one".