20797822 has 16 divisors (see below), whose sum is σ = 31692672. Its totient is φ = 10235160.

The previous prime is 20797801. The next prime is 20797841. The reversal of 20797822 is 22879702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42463 + ... + 42949.

It is an arithmetic number, because the mean of its divisors is an integer number (1980792).

Almost surely, 2^20797822 is an apocalyptic number.

20797822 is a deficient number, since it is larger than the sum of its proper divisors (10894850).

20797822 is a wasteful number, since it uses less digits than its factorization.

20797822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783.

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

The square root of 20797822 is about 4560.4629150997. The cubic root of 20797822 is about 275.0041740413.

The spelling of 20797822 in words is "twenty million, seven hundred ninety-seven thousand, eight hundred twenty-two".