10916509 has 4 divisors (see below), whose sum is σ = 10931004. Its totient is φ = 10902016.

The previous prime is 10916497. The next prime is 10916527. The reversal of 10916509 is 90561901.

10916509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2184484 + 8732025 = 1478^2 + 2955^2 .

It is a cyclic number.

It is not a de Polignac number, because 10916509 - 2⁹ = 10915997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10916809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6052 + ... + 7645.

It is an arithmetic number, because the mean of its divisors is an integer number (2732751).

Almost surely, 2^10916509 is an apocalyptic number.

It is an amenable number.

10916509 is a deficient number, since it is larger than the sum of its proper divisors (14495).

10916509 is an equidigital number, since it uses as much as digits as its factorization.

10916509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14494.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 10916509 is about 3304.0140738199. The cubic root of 10916509 is about 221.8339057398.

The spelling of 10916509 in words is "ten million, nine hundred sixteen thousand, five hundred nine".