7214427 has 24 divisors (see below), whose sum is σ = 11793600. Its totient is φ = 4370760.

The previous prime is 7214423. The next prime is 7214437. The reversal of 7214427 is 7244127.

It is a happy number.

It is not a de Polignac number, because 7214427 - 2² = 7214423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 7214427.

It is not an unprimeable number, because it can be changed into a prime (7214423) 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 23 ways as a sum of consecutive naturals, for example, 1324 + ... + 4022.

It is an arithmetic number, because the mean of its divisors is an integer number (491400).

Almost surely, 2^7214427 is an apocalyptic number.

7214427 is a deficient number, since it is larger than the sum of its proper divisors (4579173).

7214427 is a wasteful number, since it uses less digits than its factorization.

7214427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2725 (or 2713 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 7214427 is about 2685.9685403966. The cubic root of 7214427 is about 193.2267641638.

The spelling of 7214427 in words is "seven million, two hundred fourteen thousand, four hundred twenty-seven".