2974391 has 4 divisors (see below), whose sum is σ = 3399312. Its totient is φ = 2549472.

The previous prime is 2974379. The next prime is 2974397. The reversal of 2974391 is 1934792.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2974391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2974397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212450 + ... + 212463.

It is an arithmetic number, because the mean of its divisors is an integer number (849828).

2^2974391 is an apocalyptic number.

2974391 is a deficient number, since it is larger than the sum of its proper divisors (424921).

2974391 is an equidigital number, since it uses as much as digits as its factorization.

2974391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424920.

The product of its digits is 13608, while the sum is 35.

The square root of 2974391 is about 1724.6422817500. The cubic root of 2974391 is about 143.8133996333.

The spelling of 2974391 in words is "two million, nine hundred seventy-four thousand, three hundred ninety-one".