79427 has 2 divisors, whose sum is σ = 79428. Its totient is φ = 79426.

The previous prime is 79423. The next prime is 79433. The reversal of 79427 is 72497.

It is a weak prime.

It is an emirp because it is prime and its reverse (72497) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79427 - 2² = 79423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79427.

It is not a weakly prime, because it can be changed into another prime (79423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39713 + 39714.

It is an arithmetic number, because the mean of its divisors is an integer number (39714).

2⁷⁹⁴²⁷ is an apocalyptic number.

79427 is a deficient number, since it is larger than the sum of its proper divisors (1).

79427 is an equidigital number, since it uses as much as digits as its factorization.

79427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528, while the sum is 29.

The square root of 79427 is about 281.8279617071. The cubic root of 79427 is about 42.9855729499.

It can be divided in two parts, 79 and 427, that multiplied together give a palindrome (33733).

The spelling of 79427 in words is "seventy-nine thousand, four hundred twenty-seven".