20794087 has 4 divisors (see below), whose sum is σ = 21464896. Its totient is φ = 20123280.

The previous prime is 20794079. The next prime is 20794099. The reversal of 20794087 is 78049702.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20794087 - 2³ = 20794079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20794057) 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, 335358 + ... + 335419.

It is an arithmetic number, because the mean of its divisors is an integer number (5366224).

Almost surely, 2^20794087 is an apocalyptic number.

20794087 is a deficient number, since it is larger than the sum of its proper divisors (670809).

20794087 is an equidigital number, since it uses as much as digits as its factorization.

20794087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670808.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 20794087 is about 4560.0533988101. The cubic root of 20794087 is about 274.9877107456.

The spelling of 20794087 in words is "twenty million, seven hundred ninety-four thousand, eighty-seven".