2373409 has 2 divisors, whose sum is σ = 2373410. Its totient is φ = 2373408.

The previous prime is 2373407. The next prime is 2373431. The reversal of 2373409 is 9043732.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2235025 + 138384 = 1495^2 + 372^2 .

It is a cyclic number.

It is not a de Polignac number, because 2373409 - 2¹ = 2373407 is a prime.

Together with 2373407, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2373401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1186704 + 1186705.

It is an arithmetic number, because the mean of its divisors is an integer number (1186705).

2^2373409 is an apocalyptic number.

It is an amenable number.

2373409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2373409 is an equidigital number, since it uses as much as digits as its factorization.

2373409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 2373409 is about 1540.5872257032. The cubic root of 2373409 is about 133.3902833107.

The spelling of 2373409 in words is "two million, three hundred seventy-three thousand, four hundred nine".