7422947 has 4 divisors (see below), whose sum is σ = 8483376. Its totient is φ = 6362520.

The previous prime is 7422937. The next prime is 7422949. The reversal of 7422947 is 7492247.

It is a happy number.

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 7422947 - 2⁸ = 7422691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7422949) 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, 530204 + ... + 530217.

It is an arithmetic number, because the mean of its divisors is an integer number (2120844).

Almost surely, 2^7422947 is an apocalyptic number.

7422947 is a deficient number, since it is larger than the sum of its proper divisors (1060429).

7422947 is a wasteful number, since it uses less digits than its factorization.

7422947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060428.

The product of its digits is 28224, while the sum is 35.

The square root of 7422947 is about 2724.5085795424. The cubic root of 7422947 is about 195.0707348030.

The spelling of 7422947 in words is "seven million, four hundred twenty-two thousand, nine hundred forty-seven".