7665423 has 4 divisors (see below), whose sum is σ = 10220568. Its totient is φ = 5110280.

The previous prime is 7665407. The next prime is 7665431. The reversal of 7665423 is 3245667.

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 7665423 - 2⁴ = 7665407 is a prime.

It is a d-powerful number, because it can be written as 7⁸ + 6⁵ + 6⁷ + 5³ + 4¹⁰ + 2¹⁵ + 3¹² .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7665023) 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, 1277568 + ... + 1277573.

It is an arithmetic number, because the mean of its divisors is an integer number (2555142).

Almost surely, 2^7665423 is an apocalyptic number.

7665423 is a deficient number, since it is larger than the sum of its proper divisors (2555145).

7665423 is a wasteful number, since it uses less digits than its factorization.

7665423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555144.

The product of its digits is 30240, while the sum is 33.

The square root of 7665423 is about 2768.6500320553. The cubic root of 7665423 is about 197.1720605911.

The spelling of 7665423 in words is "seven million, six hundred sixty-five thousand, four hundred twenty-three".