2391963 has 8 divisors (see below), whose sum is σ = 3644928. Its totient is φ = 1366824.

The previous prime is 2391953. The next prime is 2391973. The reversal of 2391963 is 3691932.

It is an interprime number because it is at equal distance from previous prime (2391953) and next prime (2391973).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2391963 - 2⁴ = 2391947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2391953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56931 + ... + 56972.

It is an arithmetic number, because the mean of its divisors is an integer number (455616).

2^2391963 is an apocalyptic number.

2391963 is a deficient number, since it is larger than the sum of its proper divisors (1252965).

2391963 is a wasteful number, since it uses less digits than its factorization.

2391963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113913.

The product of its digits is 8748, while the sum is 33.

The square root of 2391963 is about 1546.5972326369. The cubic root of 2391963 is about 133.7369719747.

The spelling of 2391963 in words is "two million, three hundred ninety-one thousand, nine hundred sixty-three".