2463891 has 4 divisors (see below), whose sum is σ = 3285192. Its totient is φ = 1642592.

The previous prime is 2463887. The next prime is 2463893. The reversal of 2463891 is 1983642.

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 2463891 - 2² = 2463887 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2463893) 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, 410646 + ... + 410651.

It is an arithmetic number, because the mean of its divisors is an integer number (821298).

2^2463891 is an apocalyptic number.

2463891 is a deficient number, since it is larger than the sum of its proper divisors (821301).

2463891 is an equidigital number, since it uses as much as digits as its factorization.

2463891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821300.

The product of its digits is 10368, while the sum is 33.

The square root of 2463891 is about 1569.6786295290. The cubic root of 2463891 is about 135.0642766618.

Subtracting from 2463891 its reverse (1983642), we obtain a square (480249 = 693²).

The spelling of 2463891 in words is "two million, four hundred sixty-three thousand, eight hundred ninety-one".