20334197 has 8 divisors (see below), whose sum is σ = 21960120. Its totient is φ = 18717120.

The previous prime is 20334163. The next prime is 20334217. The reversal of 20334197 is 79143302.

It can be written as a sum of positive squares in 4 ways, for example, as 894916 + 19439281 = 946^2 + 4409^2 .

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 20334197 - 2⁸ = 20333941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20334107) 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 7 ways as a sum of consecutive naturals, for example, 3047 + ... + 7067.

It is an arithmetic number, because the mean of its divisors is an integer number (2745015).

Almost surely, 2^20334197 is an apocalyptic number.

It is an amenable number.

20334197 is a deficient number, since it is larger than the sum of its proper divisors (1625923).

20334197 is a wasteful number, since it uses less digits than its factorization.

20334197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4423.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 20334197 is about 4509.3455179216. The cubic root of 20334197 is about 272.9453347142.

Adding to 20334197 its reverse (79143302), we get a palindrome (99477499).

The spelling of 20334197 in words is "twenty million, three hundred thirty-four thousand, one hundred ninety-seven".