20864602 has 8 divisors (see below), whose sum is σ = 34142112. Its totient is φ = 9483900.

The previous prime is 20864587. The next prime is 20864609. The reversal of 20864602 is 20646802.

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

It is not an unprimeable number, because it can be changed into a prime (20864609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474174 + ... + 474217.

It is an arithmetic number, because the mean of its divisors is an integer number (4267764).

Almost surely, 2^20864602 is an apocalyptic number.

20864602 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20864602 is a deficient number, since it is larger than the sum of its proper divisors (13277510).

20864602 is a wasteful number, since it uses less digits than its factorization.

20864602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948404.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 20864602 is about 4567.7786723965. The cubic root of 20864602 is about 275.2981977429.

The spelling of 20864602 in words is "twenty million, eight hundred sixty-four thousand, six hundred two".