6243491 has 4 divisors (see below), whose sum is σ = 6412272. Its totient is φ = 6074712.

The previous prime is 6243487. The next prime is 6243553. The reversal of 6243491 is 1943426.

6243491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1943426 = 2 ⋅971713.

It is a cyclic number.

It is not a de Polignac number, because 6243491 - 2² = 6243487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6243451) 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, 84335 + ... + 84408.

It is an arithmetic number, because the mean of its divisors is an integer number (1603068).

Almost surely, 2^6243491 is an apocalyptic number.

6243491 is a deficient number, since it is larger than the sum of its proper divisors (168781).

6243491 is a wasteful number, since it uses less digits than its factorization.

6243491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168780.

The product of its digits is 5184, while the sum is 29.

The square root of 6243491 is about 2498.6978608867. The cubic root of 6243491 is about 184.1376077582.

The spelling of 6243491 in words is "six million, two hundred forty-three thousand, four hundred ninety-one".