7042823 has 2 divisors, whose sum is σ = 7042824. Its totient is φ = 7042822.

The previous prime is 7042801. The next prime is 7042829. The reversal of 7042823 is 3282407.

It is a strong prime.

It is an emirp because it is prime and its reverse (3282407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7042823 - 2¹⁶ = 6977287 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7042792 and 7042801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7042829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3521411 + 3521412.

It is an arithmetic number, because the mean of its divisors is an integer number (3521412).

Almost surely, 2^7042823 is an apocalyptic number.

7042823 is a deficient number, since it is larger than the sum of its proper divisors (1).

7042823 is an equidigital number, since it uses as much as digits as its factorization.

7042823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 7042823 is about 2653.8317580435. The cubic root of 7042823 is about 191.6824086209.

The spelling of 7042823 in words is "seven million, forty-two thousand, eight hundred twenty-three".