2931009 has 8 divisors (see below), whose sum is σ = 3999072. Its totient is φ = 1908480.

The previous prime is 2930999. The next prime is 2931041. The reversal of 2931009 is 9001392.

It is a happy number.

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

It is not a de Polignac number, because 2931009 - 2¹⁹ = 2406721 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2931009.

It is not an unprimeable number, because it can be changed into a prime (2931079) 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, 11232 + ... + 11489.

It is an arithmetic number, because the mean of its divisors is an integer number (499884).

2^2931009 is an apocalyptic number.

It is an amenable number.

2931009 is a deficient number, since it is larger than the sum of its proper divisors (1068063).

2931009 is a wasteful number, since it uses less digits than its factorization.

2931009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22767.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 2931009 is about 1712.0189835396. The cubic root of 2931009 is about 143.1107916077.

The spelling of 2931009 in words is "two million, nine hundred thirty-one thousand, nine".