4009373 has 2 divisors, whose sum is σ = 4009374. Its totient is φ = 4009372.

The previous prime is 4009339. The next prime is 4009381. The reversal of 4009373 is 3739004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4008004 + 1369 = 2002^2 + 37^2 .

It is a cyclic number.

It is not a de Polignac number, because 4009373 - 2¹⁰ = 4008349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4009333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2004686 + 2004687.

It is an arithmetic number, because the mean of its divisors is an integer number (2004687).

Almost surely, 2^4009373 is an apocalyptic number.

It is an amenable number.

4009373 is a deficient number, since it is larger than the sum of its proper divisors (1).

4009373 is an equidigital number, since it uses as much as digits as its factorization.

4009373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 4009373 is about 2002.3418789008. The cubic root of 4009373 is about 158.8639977273.

The spelling of 4009373 in words is "four million, nine thousand, three hundred seventy-three".