2937391 has 2 divisors, whose sum is σ = 2937392. Its totient is φ = 2937390.

The previous prime is 2937377. The next prime is 2937397. The reversal of 2937391 is 1937392.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2937391 - 2¹⁵ = 2904623 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2937397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1468695 + 1468696.

It is an arithmetic number, because the mean of its divisors is an integer number (1468696).

2^2937391 is an apocalyptic number.

2937391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2937391 is an equidigital number, since it uses as much as digits as its factorization.

2937391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10206, while the sum is 34.

The square root of 2937391 is about 1713.8818512371. The cubic root of 2937391 is about 143.2145864640.

Subtracting from 2937391 its reverse (1937392), we obtain a palindrome (999999).

The spelling of 2937391 in words is "two million, nine hundred thirty-seven thousand, three hundred ninety-one".