20597802 has 8 divisors (see below), whose sum is σ = 41195616. Its totient is φ = 6865932.

The previous prime is 20597783. The next prime is 20597803. The reversal of 20597802 is 20879502.

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

20597802 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20597803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1716478 + ... + 1716489.

It is an arithmetic number, because the mean of its divisors is an integer number (5149452).

Almost surely, 2^20597802 is an apocalyptic number.

20597802 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20597802 is a wasteful number, since it uses less digits than its factorization.

20597802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432972.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 20597802 is about 4538.4801420740. The cubic root of 20597802 is about 274.1197285195.

The spelling of 20597802 in words is "twenty million, five hundred ninety-seven thousand, eight hundred two".