20965798 has 8 divisors (see below), whose sum is σ = 35941392. Its totient is φ = 8985336.

The previous prime is 20965757. The next prime is 20965817. The reversal of 20965798 is 89756902.

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

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, 748765 + ... + 748792.

It is an arithmetic number, because the mean of its divisors is an integer number (4492674).

Almost surely, 2^20965798 is an apocalyptic number.

20965798 is a deficient number, since it is larger than the sum of its proper divisors (14975594).

20965798 is a wasteful number, since it uses less digits than its factorization.

20965798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497566.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 20965798 is about 4578.8424301345. The cubic root of 20965798 is about 275.7425573231.

The spelling of 20965798 in words is "twenty million, nine hundred sixty-five thousand, seven hundred ninety-eight".