20059897 has 16 divisors (see below), whose sum is σ = 23748480. Its totient is φ = 16704000.

The previous prime is 20059861. The next prime is 20059901. The reversal of 20059897 is 79895002.

It is a cyclic number.

It is not a de Polignac number, because 20059897 - 2⁷ = 20059769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20059807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21129 + ... + 22057.

It is an arithmetic number, because the mean of its divisors is an integer number (1484280).

Almost surely, 2^20059897 is an apocalyptic number.

It is an amenable number.

20059897 is a deficient number, since it is larger than the sum of its proper divisors (3688583).

20059897 is a wasteful number, since it uses less digits than its factorization.

20059897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 20059897 is about 4478.8276367818. The cubic root of 20059897 is about 271.7124673847.

The spelling of 20059897 in words is "twenty million, fifty-nine thousand, eight hundred ninety-seven".