23420773 has 2 divisors, whose sum is σ = 23420774. Its totient is φ = 23420772.

The previous prime is 23420759. The next prime is 23420783. The reversal of 23420773 is 37702432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21224449 + 2196324 = 4607^2 + 1482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23420773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23420783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11710386 + 11710387.

It is an arithmetic number, because the mean of its divisors is an integer number (11710387).

Almost surely, 2^23420773 is an apocalyptic number.

It is an amenable number.

23420773 is a deficient number, since it is larger than the sum of its proper divisors (1).

23420773 is an equidigital number, since it uses as much as digits as its factorization.

23420773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 23420773 is about 4839.5013172847. The cubic root of 23420773 is about 286.1104639554.

The spelling of 23420773 in words is "twenty-three million, four hundred twenty thousand, seven hundred seventy-three".