7279423 has 4 divisors (see below), whose sum is σ = 7290088. Its totient is φ = 7268760.

The previous prime is 7279421. The next prime is 7279429. The reversal of 7279423 is 3249727.

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 7279423 - 2¹ = 7279421 is a prime.

It is a Duffinian number.

7279423 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7279421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4233 + ... + 5698.

It is an arithmetic number, because the mean of its divisors is an integer number (1822522).

Almost surely, 2^7279423 is an apocalyptic number.

7279423 is a deficient number, since it is larger than the sum of its proper divisors (10665).

7279423 is an equidigital number, since it uses as much as digits as its factorization.

7279423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10664.

The product of its digits is 21168, while the sum is 34.

The square root of 7279423 is about 2698.0405853137. The cubic root of 7279423 is about 193.8053011756.

The spelling of 7279423 in words is "seven million, two hundred seventy-nine thousand, four hundred twenty-three".