9491371 has 2 divisors, whose sum is σ = 9491372. Its totient is φ = 9491370.

The previous prime is 9491359. The next prime is 9491401. The reversal of 9491371 is 1731949.

9491371 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 an emirp because it is prime and its reverse (1731949) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9491371 is a prime.

It is a super-2 number, since 2×9491371² = 180172246919282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9491171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4745685 + 4745686.

It is an arithmetic number, because the mean of its divisors is an integer number (4745686).

Almost surely, 2^9491371 is an apocalyptic number.

9491371 is a deficient number, since it is larger than the sum of its proper divisors (1).

9491371 is an equidigital number, since it uses as much as digits as its factorization.

9491371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 34.

The square root of 9491371 is about 3080.8068748300. The cubic root of 9491371 is about 211.7270353638.

The spelling of 9491371 in words is "nine million, four hundred ninety-one thousand, three hundred seventy-one".