10920009 has 8 divisors (see below), whose sum is σ = 15193152. Its totient is φ = 6963440.

The previous prime is 10919999. The next prime is 10920017. The reversal of 10920009 is 90002901.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10920009 - 2⁵ = 10919977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10920059) 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, 79062 + ... + 79199.

It is an arithmetic number, because the mean of its divisors is an integer number (1899144).

Almost surely, 2^10920009 is an apocalyptic number.

It is an amenable number.

10920009 is a deficient number, since it is larger than the sum of its proper divisors (4273143).

10920009 is a wasteful number, since it uses less digits than its factorization.

10920009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158287.

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

The square root of 10920009 is about 3304.5436901333. The cubic root of 10920009 is about 221.8576109893.

The spelling of 10920009 in words is "ten million, nine hundred twenty thousand, nine".