7278963 has 8 divisors (see below), whose sum is σ = 9720768. Its totient is φ = 4844904.

The previous prime is 7278961. The next prime is 7279003. The reversal of 7278963 is 3698727.

7278963 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 7278963 - 2¹ = 7278961 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (7278961) 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 7 ways as a sum of consecutive naturals, for example, 820 + ... + 3902.

It is an arithmetic number, because the mean of its divisors is an integer number (1215096).

Almost surely, 2^7278963 is an apocalyptic number.

7278963 is a deficient number, since it is larger than the sum of its proper divisors (2441805).

7278963 is a wasteful number, since it uses less digits than its factorization.

7278963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3873.

The product of its digits is 127008, while the sum is 42.

The square root of 7278963 is about 2697.9553369172. The cubic root of 7278963 is about 193.8012187863.

The spelling of 7278963 in words is "seven million, two hundred seventy-eight thousand, nine hundred sixty-three".