20620099 has 8 divisors (see below), whose sum is σ = 21885120. Its totient is φ = 19360896.

The previous prime is 20620097. The next prime is 20620109. The reversal of 20620099 is 99002602.

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 20620099 - 2¹ = 20620097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20620097) 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, 7462 + ... + 9844.

It is an arithmetic number, because the mean of its divisors is an integer number (2735640).

Almost surely, 2^20620099 is an apocalyptic number.

20620099 is a deficient number, since it is larger than the sum of its proper divisors (1265021).

20620099 is a wasteful number, since it uses less digits than its factorization.

20620099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2909.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 20620099 is about 4540.9359167467. The cubic root of 20620099 is about 274.2186038508.

The spelling of 20620099 in words is "twenty million, six hundred twenty thousand, ninety-nine".