20706794 has 8 divisors (see below), whose sum is σ = 31083588. Its totient is φ = 10345600.

The previous prime is 20706787. The next prime is 20706797. The reversal of 20706794 is 49760702.

It can be written as a sum of positive squares in 2 ways, for example, as 18105025 + 2601769 = 4255^2 + 1613^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20706797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344 + ... + 6444.

Almost surely, 2^20706794 is an apocalyptic number.

20706794 is a deficient number, since it is larger than the sum of its proper divisors (10376794).

20706794 is a wasteful number, since it uses less digits than its factorization.

20706794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7800.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 20706794 is about 4550.4718436663. The cubic root of 20706794 is about 274.6023741052.

The spelling of 20706794 in words is "twenty million, seven hundred six thousand, seven hundred ninety-four".