7991463 has 8 divisors (see below), whose sum is σ = 10668400. Its totient is φ = 5321088.

The previous prime is 7991453. The next prime is 7991471. The reversal of 7991463 is 3641997.

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

It is not a de Polignac number, because 7991463 - 2⁴ = 7991447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7991453) 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, 3573 + ... + 5361.

It is an arithmetic number, because the mean of its divisors is an integer number (1333550).

Almost surely, 2^7991463 is an apocalyptic number.

7991463 is a deficient number, since it is larger than the sum of its proper divisors (2676937).

7991463 is a wasteful number, since it uses less digits than its factorization.

7991463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3281.

The product of its digits is 40824, while the sum is 39.

The square root of 7991463 is about 2826.9175792725. The cubic root of 7991463 is about 199.9288330126.

The spelling of 7991463 in words is "seven million, nine hundred ninety-one thousand, four hundred sixty-three".