7429423 has 4 divisors (see below), whose sum is σ = 7685640. Its totient is φ = 7173208.

The previous prime is 7429421. The next prime is 7429439. The reversal of 7429423 is 3249247.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7429423 - 2¹ = 7429421 is a prime.

It is a super-2 number, since 2×7429423² = 110392652225858, which contains 22 as substring.

It is a d-powerful number, because it can be written as 7⁴ + 4⁵ + 2 + 9⁷ + 4¹⁰ + 2⁷ + 3¹³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7429421) 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, 128065 + ... + 128122.

It is an arithmetic number, because the mean of its divisors is an integer number (1921410).

Almost surely, 2^7429423 is an apocalyptic number.

7429423 is a deficient number, since it is larger than the sum of its proper divisors (256217).

7429423 is a wasteful number, since it uses less digits than its factorization.

7429423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256216.

The product of its digits is 12096, while the sum is 31.

The square root of 7429423 is about 2725.6967916480. The cubic root of 7429423 is about 195.1274468197.

The spelling of 7429423 in words is "seven million, four hundred twenty-nine thousand, four hundred twenty-three".