20791708 has 24 divisors (see below), whose sum is σ = 42207872. Its totient is φ = 8776944.

The previous prime is 20791703. The next prime is 20791709. The reversal of 20791708 is 80719702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20791703) 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, 3666 + ... + 7417.

Almost surely, 2^20791708 is an apocalyptic number.

20791708 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20791708 is an abundant number, since it is smaller than the sum of its proper divisors (21416164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20791708 is a wasteful number, since it uses less digits than its factorization.

20791708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11161 (or 11159 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 20791708 is about 4559.7925391403. The cubic root of 20791708 is about 274.9772234580.

The spelling of 20791708 in words is "twenty million, seven hundred ninety-one thousand, seven hundred eight".