20838597 has 8 divisors (see below), whose sum is σ = 29922144. Its totient is φ = 12823728.

The previous prime is 20838589. The next prime is 20838599. The reversal of 20838597 is 79583802.

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

It is not a de Polignac number, because 20838597 - 2³ = 20838589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20838599) 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, 267123 + ... + 267200.

It is an arithmetic number, because the mean of its divisors is an integer number (3740268).

Almost surely, 2^20838597 is an apocalyptic number.

It is an amenable number.

20838597 is a deficient number, since it is larger than the sum of its proper divisors (9083547).

20838597 is a wasteful number, since it uses less digits than its factorization.

20838597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534339.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 20838597 is about 4564.9312152540. The cubic root of 20838597 is about 275.1837757824.

The spelling of 20838597 in words is "twenty million, eight hundred thirty-eight thousand, five hundred ninety-seven".