7879427 has 2 divisors, whose sum is σ = 7879428. Its totient is φ = 7879426.

The previous prime is 7879423. The next prime is 7879447. The reversal of 7879427 is 7249787.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7879427 - 2² = 7879423 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7879423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3939713 + 3939714.

It is an arithmetic number, because the mean of its divisors is an integer number (3939714).

Almost surely, 2^7879427 is an apocalyptic number.

7879427 is a deficient number, since it is larger than the sum of its proper divisors (1).

7879427 is an equidigital number, since it uses as much as digits as its factorization.

7879427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 197568, while the sum is 44.

The square root of 7879427 is about 2807.0317062691. The cubic root of 7879427 is about 198.9901344402.

The spelling of 7879427 in words is "seven million, eight hundred seventy-nine thousand, four hundred twenty-seven".