2347491 has 4 divisors (see below), whose sum is σ = 3129992. Its totient is φ = 1564992.

The previous prime is 2347487. The next prime is 2347493. The reversal of 2347491 is 1947432.

It is a happy number.

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

It is not a de Polignac number, because 2347491 - 2² = 2347487 is a prime.

It is a D-number.

It is a Duffinian number.

2347491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2347493) 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, 391246 + ... + 391251.

It is an arithmetic number, because the mean of its divisors is an integer number (782498).

2^2347491 is an apocalyptic number.

2347491 is a deficient number, since it is larger than the sum of its proper divisors (782501).

2347491 is an equidigital number, since it uses as much as digits as its factorization.

2347491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782500.

The product of its digits is 6048, while the sum is 30.

The square root of 2347491 is about 1532.1524075626. The cubic root of 2347491 is about 132.9029574581.

The spelling of 2347491 in words is "two million, three hundred forty-seven thousand, four hundred ninety-one".