2463991 has 2 divisors, whose sum is σ = 2463992. Its totient is φ = 2463990.

The previous prime is 2463983. The next prime is 2464003. The reversal of 2463991 is 1993642.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2463991 - 2³ = 2463983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2463971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1231995 + 1231996.

It is an arithmetic number, because the mean of its divisors is an integer number (1231996).

2^2463991 is an apocalyptic number.

2463991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2463991 is an equidigital number, since it uses as much as digits as its factorization.

2463991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 34.

The square root of 2463991 is about 1569.7104828598. The cubic root of 2463991 is about 135.0661038861.

The spelling of 2463991 in words is "two million, four hundred sixty-three thousand, nine hundred ninety-one".