2347391 has 4 divisors (see below), whose sum is σ = 2410872. Its totient is φ = 2283912.

The previous prime is 2347379. The next prime is 2347409. The reversal of 2347391 is 1937432.

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

It is a cyclic number.

It is not a de Polignac number, because 2347391 - 2¹⁸ = 2085247 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 (2347361) 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, 31685 + ... + 31758.

It is an arithmetic number, because the mean of its divisors is an integer number (602718).

2^2347391 is an apocalyptic number.

2347391 is a deficient number, since it is larger than the sum of its proper divisors (63481).

2347391 is an equidigital number, since it uses as much as digits as its factorization.

2347391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63480.

The product of its digits is 4536, while the sum is 29.

The square root of 2347391 is about 1532.1197733859. The cubic root of 2347391 is about 132.9010702681.

The spelling of 2347391 in words is "two million, three hundred forty-seven thousand, three hundred ninety-one".