10902009 has 8 divisors (see below), whose sum is σ = 14588512. Its totient is φ = 7241760.

The previous prime is 10902007. The next prime is 10902011. The reversal of 10902009 is 90020901.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10902007) and next prime (10902011).

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

It is not a de Polignac number, because 10902009 - 2¹ = 10902007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10902007) 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, 5572 + ... + 7269.

It is an arithmetic number, because the mean of its divisors is an integer number (1823564).

Almost surely, 2^10902009 is an apocalyptic number.

It is an amenable number.

10902009 is a deficient number, since it is larger than the sum of its proper divisors (3686503).

10902009 is a wasteful number, since it uses less digits than its factorization.

10902009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13127.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 10902009 is about 3301.8190441028. The cubic root of 10902009 is about 221.7356442643.

The spelling of 10902009 in words is "ten million, nine hundred two thousand, nine".