2957391 has 20 divisors (see below), whose sum is σ = 4573800. Its totient is φ = 1902096.

The previous prime is 2957389. The next prime is 2957399. The reversal of 2957391 is 1937592.

It is not a de Polignac number, because 2957391 - 2¹ = 2957389 is a prime.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2957399) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1720 + ... + 2978.

It is an arithmetic number, because the mean of its divisors is an integer number (228690).

2^2957391 is an apocalyptic number.

2957391 is a deficient number, since it is larger than the sum of its proper divisors (1616409).

2957391 is a wasteful number, since it uses less digits than its factorization.

2957391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300 (or 1291 counting only the distinct ones).

The product of its digits is 17010, while the sum is 36.

The square root of 2957391 is about 1719.7066610326. The cubic root of 2957391 is about 143.5388896122.

The spelling of 2957391 in words is "two million, nine hundred fifty-seven thousand, three hundred ninety-one".