7904723 has 2 divisors, whose sum is σ = 7904724. Its totient is φ = 7904722.

The previous prime is 7904719. The next prime is 7904731. The reversal of 7904723 is 3274097.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3274097) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7904723 - 2² = 7904719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7904723.

It is not a weakly prime, because it can be changed into another prime (7904753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3952361 + 3952362.

It is an arithmetic number, because the mean of its divisors is an integer number (3952362).

Almost surely, 2^7904723 is an apocalyptic number.

7904723 is a deficient number, since it is larger than the sum of its proper divisors (1).

7904723 is an equidigital number, since it uses as much as digits as its factorization.

7904723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 7904723 is about 2811.5339229680. The cubic root of 7904723 is about 199.2028519965.

The spelling of 7904723 in words is "seven million, nine hundred four thousand, seven hundred twenty-three".