20896797 has 8 divisors (see below), whose sum is σ = 28334880. Its totient is φ = 13694960.

The previous prime is 20896783. The next prime is 20896801. The reversal of 20896797 is 79769802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20896797 - 2⁴ = 20896781 is a prime.

It is a super-2 number, since 2×20896797² = 873352249718418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20816797) 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, 58854 + ... + 59207.

It is an arithmetic number, because the mean of its divisors is an integer number (3541860).

Almost surely, 2^20896797 is an apocalyptic number.

It is an amenable number.

20896797 is a deficient number, since it is larger than the sum of its proper divisors (7438083).

20896797 is a wasteful number, since it uses less digits than its factorization.

20896797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118123.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 20896797 is about 4571.3014558220. The cubic root of 20896797 is about 275.4397240562.

The spelling of 20896797 in words is "twenty million, eight hundred ninety-six thousand, seven hundred ninety-seven".