7942427 has 2 divisors, whose sum is σ = 7942428. Its totient is φ = 7942426.

The previous prime is 7942411. The next prime is 7942447. The reversal of 7942427 is 7242497.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7942427 - 2⁴ = 7942411 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (7942447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3971213 + 3971214.

It is an arithmetic number, because the mean of its divisors is an integer number (3971214).

Almost surely, 2^7942427 is an apocalyptic number.

7942427 is a deficient number, since it is larger than the sum of its proper divisors (1).

7942427 is an equidigital number, since it uses as much as digits as its factorization.

7942427 is an evil number, because the sum of its binary digits is even.

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

The square root of 7942427 is about 2818.2311828521. The cubic root of 7942427 is about 199.5190694560.

The spelling of 7942427 in words is "seven million, nine hundred forty-two thousand, four hundred twenty-seven".