2957491 has 4 divisors (see below), whose sum is σ = 2961000. Its totient is φ = 2953984.

The previous prime is 2957489. The next prime is 2957531. The reversal of 2957491 is 1947592.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2957491 - 2¹ = 2957489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2957491.

It is not an unprimeable number, because it can be changed into a prime (2957401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360 + ... + 2458.

It is an arithmetic number, because the mean of its divisors is an integer number (740250).

2^2957491 is an apocalyptic number.

2957491 is a deficient number, since it is larger than the sum of its proper divisors (3509).

2957491 is a wasteful number, since it uses less digits than its factorization.

2957491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3508.

The product of its digits is 22680, while the sum is 37.

The square root of 2957491 is about 1719.7357355129. The cubic root of 2957491 is about 143.5405074489.

The spelling of 2957491 in words is "two million, nine hundred fifty-seven thousand, four hundred ninety-one".