7422279 has 8 divisors (see below), whose sum is σ = 10083312. Its totient is φ = 4854720.

The previous prime is 7422277. The next prime is 7422281. The reversal of 7422279 is 9722247.

7422279 is nontrivially palindromic in base 2.

7422279 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (7422277) and next prime (7422281).

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

It is not a de Polignac number, because 7422279 - 2¹ = 7422277 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 7 + 4⁵ + 2⁵ + 2¹⁹ + 2²¹ + 7⁵ + 9⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7422277) 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, 23182 + ... + 23499.

It is an arithmetic number, because the mean of its divisors is an integer number (1260414).

Almost surely, 2^7422279 is an apocalyptic number.

7422279 is a deficient number, since it is larger than the sum of its proper divisors (2661033).

7422279 is a wasteful number, since it uses less digits than its factorization.

7422279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46737.

The product of its digits is 14112, while the sum is 33.

The square root of 7422279 is about 2724.3859858691. The cubic root of 7422279 is about 195.0648830768.

Subtracting 7422279 from its reverse (9722247), we obtain a cube (2299968 = 132³).

The spelling of 7422279 in words is "seven million, four hundred twenty-two thousand, two hundred seventy-nine".