20916795 has 8 divisors (see below), whose sum is σ = 33466896. Its totient is φ = 11155616.

The previous prime is 20916793. The next prime is 20916809. The reversal of 20916795 is 59761902.

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 20916795 - 2¹ = 20916793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20916793) 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, 697212 + ... + 697241.

It is an arithmetic number, because the mean of its divisors is an integer number (4183362).

Almost surely, 2^20916795 is an apocalyptic number.

20916795 is a deficient number, since it is larger than the sum of its proper divisors (12550101).

20916795 is a wasteful number, since it uses less digits than its factorization.

20916795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394461.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 20916795 is about 4573.4882748292. The cubic root of 20916795 is about 275.5275602834.

The spelling of 20916795 in words is "twenty million, nine hundred sixteen thousand, seven hundred ninety-five".