2947237 has 4 divisors (see below), whose sum is σ = 2954016. Its totient is φ = 2940460.

The previous prime is 2947213. The next prime is 2947249. The reversal of 2947237 is 7327492.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2947237 - 2¹⁹ = 2422949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2947207) 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, 2689 + ... + 3622.

It is an arithmetic number, because the mean of its divisors is an integer number (738504).

2^2947237 is an apocalyptic number.

It is an amenable number.

2947237 is a deficient number, since it is larger than the sum of its proper divisors (6779).

2947237 is an equidigital number, since it uses as much as digits as its factorization.

2947237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6778.

The product of its digits is 21168, while the sum is 34.

The square root of 2947237 is about 1716.7518749080. The cubic root of 2947237 is about 143.3744242504.

The spelling of 2947237 in words is "two million, nine hundred forty-seven thousand, two hundred thirty-seven".