7522427 has 4 divisors (see below), whose sum is σ = 8206296. Its totient is φ = 6838560.

The previous prime is 7522409. The next prime is 7522439. The reversal of 7522427 is 7242257.

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 7522427 - 2⁶ = 7522363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7522427.

It is not an unprimeable number, because it can be changed into a prime (7522327) 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, 341918 + ... + 341939.

It is an arithmetic number, because the mean of its divisors is an integer number (2051574).

Almost surely, 2^7522427 is an apocalyptic number.

7522427 is a deficient number, since it is larger than the sum of its proper divisors (683869).

7522427 is a wasteful number, since it uses less digits than its factorization.

7522427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683868.

The product of its digits is 7840, while the sum is 29.

The square root of 7522427 is about 2742.7043223796. The cubic root of 7522427 is about 195.9382962091.

The spelling of 7522427 in words is "seven million, five hundred twenty-two thousand, four hundred twenty-seven".