7279663 has 4 divisors (see below), whose sum is σ = 7311960. Its totient is φ = 7247368.

The previous prime is 7279631. The next prime is 7279669. The reversal of 7279663 is 3669727.

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 7279663 - 2⁵ = 7279631 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 (7279669) 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, 15808 + ... + 16261.

It is an arithmetic number, because the mean of its divisors is an integer number (1827990).

Almost surely, 2^7279663 is an apocalyptic number.

7279663 is a deficient number, since it is larger than the sum of its proper divisors (32297).

7279663 is a wasteful number, since it uses less digits than its factorization.

7279663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32296.

The product of its digits is 95256, while the sum is 40.

The square root of 7279663 is about 2698.0850616687. The cubic root of 7279663 is about 193.8074310496.

The spelling of 7279663 in words is "seven million, two hundred seventy-nine thousand, six hundred sixty-three".