20694806 has 32 divisors (see below), whose sum is σ = 35424000. Its totient is φ = 8981280.

The previous prime is 20694787. The next prime is 20694823. The reversal of 20694806 is 60849602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103895 + ... + 104093.

It is an arithmetic number, because the mean of its divisors is an integer number (1107000).

Almost surely, 2^20694806 is an apocalyptic number.

20694806 is a deficient number, since it is larger than the sum of its proper divisors (14729194).

20694806 is a wasteful number, since it uses less digits than its factorization.

20694806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 20694806 is about 4549.1544269238. The cubic root of 20694806 is about 274.5493710709.

The spelling of 20694806 in words is "twenty million, six hundred ninety-four thousand, eight hundred six".