2409973 has 4 divisors (see below), whose sum is σ = 2450880. Its totient is φ = 2369068.

The previous prime is 2409947. The next prime is 2409983. The reversal of 2409973 is 3799042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2409973 is a prime.

It is a Duffinian number.

2409973 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2409983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20365 + ... + 20482.

It is an arithmetic number, because the mean of its divisors is an integer number (612720).

2^2409973 is an apocalyptic number.

It is an amenable number.

2409973 is a deficient number, since it is larger than the sum of its proper divisors (40907).

2409973 is an equidigital number, since it uses as much as digits as its factorization.

2409973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40906.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 2409973 is about 1552.4087734872. The cubic root of 2409973 is about 134.0717852542.

The spelling of 2409973 in words is "two million, four hundred nine thousand, nine hundred seventy-three".