7847242423 has 2 divisors, whose sum is σ = 7847242424. Its totient is φ = 7847242422.

The previous prime is 7847242363. The next prime is 7847242433. The reversal of 7847242423 is 3242427487.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7847242423 - 2²¹ = 7845145271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7847242423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7847242433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3923621211 + 3923621212.

It is an arithmetic number, because the mean of its divisors is an integer number (3923621212).

Almost surely, 2^7847242423 is an apocalyptic number.

7847242423 is a deficient number, since it is larger than the sum of its proper divisors (1).

7847242423 is an equidigital number, since it uses as much as digits as its factorization.

7847242423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 602112, while the sum is 43.

The square root of 7847242423 is about 88584.6624591413. The cubic root of 7847242423 is about 1987.1883074254.

The spelling of 7847242423 in words is "seven billion, eight hundred forty-seven million, two hundred forty-two thousand, four hundred twenty-three".