2002897409 has 8 divisors (see below), whose sum is σ = 2015305920. Its totient is φ = 1990502800.

The previous prime is 2002897399. The next prime is 2002897427. The reversal of 2002897409 is 9047982002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2002897409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002897459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510164 + ... + 514074.

It is an arithmetic number, because the mean of its divisors is an integer number (251913240).

Almost surely, 2^2002897409 is an apocalyptic number.

It is an amenable number.

2002897409 is a deficient number, since it is larger than the sum of its proper divisors (12408511).

2002897409 is a wasteful number, since it uses less digits than its factorization.

2002897409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6951.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 2002897409 is about 44753.7418435599. The cubic root of 2002897409 is about 1260.5291740901.

The spelling of 2002897409 in words is "two billion, two million, eight hundred ninety-seven thousand, four hundred nine".