7924427 has 12 divisors (see below), whose sum is σ = 9435096. Its totient is φ = 6632640.

The previous prime is 7924421. The next prime is 7924429. The reversal of 7924427 is 7244297.

It is a happy number.

It is not a de Polignac number, because 7924427 - 2¹⁶ = 7858891 is a prime.

It is a d-powerful number, because it can be written as 7⁴ + 9⁵ + 2⁹ + 4⁴ + 4⁴ + 2²¹ + 7⁸ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7924421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227 + ... + 3987.

It is an arithmetic number, because the mean of its divisors is an integer number (786258).

Almost surely, 2^7924427 is an apocalyptic number.

7924427 is a deficient number, since it is larger than the sum of its proper divisors (1510669).

7924427 is a wasteful number, since it uses less digits than its factorization.

7924427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3818 (or 3811 counting only the distinct ones).

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

The square root of 7924427 is about 2815.0358789898. The cubic root of 7924427 is about 199.3682314438.

The spelling of 7924427 in words is "seven million, nine hundred twenty-four thousand, four hundred twenty-seven".