7274427 has 4 divisors (see below), whose sum is σ = 9699240. Its totient is φ = 4849616.

The previous prime is 7274413. The next prime is 7274431. The reversal of 7274427 is 7244727.

7274427 is nontrivially palindromic in base 2.

7274427 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7274427 - 2⁴ = 7274411 is a prime.

7274427 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7274437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1212402 + ... + 1212407.

It is an arithmetic number, because the mean of its divisors is an integer number (2424810).

Almost surely, 2^7274427 is an apocalyptic number.

7274427 is a deficient number, since it is larger than the sum of its proper divisors (2424813).

7274427 is a wasteful number, since it uses less digits than its factorization.

7274427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2424812.

The product of its digits is 21952, while the sum is 33.

The square root of 7274427 is about 2697.1145693129. The cubic root of 7274427 is about 193.7609536645.

It can be divided in two parts, 72744 and 27, that added together give a triangular number (72771 = T₃₈₁).

The spelling of 7274427 in words is "seven million, two hundred seventy-four thousand, four hundred twenty-seven".