10916921 has 4 divisors (see below), whose sum is σ = 10995600. Its totient is φ = 10838244.

The previous prime is 10916911. The next prime is 10916923. The reversal of 10916921 is 12961901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10916921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10916923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39131 + ... + 39408.

It is an arithmetic number, because the mean of its divisors is an integer number (2748900).

Almost surely, 2^10916921 is an apocalyptic number.

It is an amenable number.

10916921 is a deficient number, since it is larger than the sum of its proper divisors (78679).

10916921 is an equidigital number, since it uses as much as digits as its factorization.

10916921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78678.

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 10916921 is about 3304.0764216343. The cubic root of 10916921 is about 221.8366964494.

The spelling of 10916921 in words is "ten million, nine hundred sixteen thousand, nine hundred twenty-one".