20861792 has 24 divisors (see below), whose sum is σ = 46939536. Its totient is φ = 8940672.

The previous prime is 20861783. The next prime is 20861803. The reversal of 20861792 is 29716802.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46343 + ... + 46790.

It is an arithmetic number, because the mean of its divisors is an integer number (1955814).

Almost surely, 2^20861792 is an apocalyptic number.

It is an amenable number.

20861792 is an abundant number, since it is smaller than the sum of its proper divisors (26077744).

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

20861792 is an equidigital number, since it uses as much as digits as its factorization.

20861792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93150 (or 93142 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 20861792 is about 4567.4710727053. The cubic root of 20861792 is about 275.2858383304.

The spelling of 20861792 in words is "twenty million, eight hundred sixty-one thousand, seven hundred ninety-two".