2391463 has 4 divisors (see below), whose sum is σ = 2404048. Its totient is φ = 2378880.

The previous prime is 2391461. The next prime is 2391469. The reversal of 2391463 is 3641932.

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 2391463 - 2¹ = 2391461 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2391461) 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 in 3 ways as a sum of consecutive naturals, for example, 6003 + ... + 6388.

It is an arithmetic number, because the mean of its divisors is an integer number (601012).

2^2391463 is an apocalyptic number.

2391463 is a deficient number, since it is larger than the sum of its proper divisors (12585).

2391463 is a wasteful number, since it uses less digits than its factorization.

2391463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12584.

The product of its digits is 3888, while the sum is 28.

The square root of 2391463 is about 1546.4355790009. The cubic root of 2391463 is about 133.7276528303.

The spelling of 2391463 in words is "two million, three hundred ninety-one thousand, four hundred sixty-three".