2009497 has 16 divisors (see below), whose sum is σ = 2505600. Its totient is φ = 1572480.

The previous prime is 2009489. The next prime is 2009503. The reversal of 2009497 is 7949002.

It is not a de Polignac number, because 2009497 - 2³ = 2009489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3597 + ... + 4117.

It is an arithmetic number, because the mean of its divisors is an integer number (156600).

2^2009497 is an apocalyptic number.

It is an amenable number.

2009497 is a deficient number, since it is larger than the sum of its proper divisors (496103).

2009497 is a wasteful number, since it uses less digits than its factorization.

2009497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 2009497 is about 1417.5672823538. The cubic root of 2009497 is about 126.1912146673.

The spelling of 2009497 in words is "two million, nine thousand, four hundred ninety-seven".