20608601 has 8 divisors (see below), whose sum is σ = 22391880. Its totient is φ = 18853632.

The previous prime is 20608543. The next prime is 20608613. The reversal of 20608601 is 10680602.

It can be written as a sum of positive squares in 4 ways, for example, as 3798601 + 16810000 = 1949^2 + 4100^2 .

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 20608601 - 2⁶ = 20608537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20608661) 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, 5546 + ... + 8483.

It is an arithmetic number, because the mean of its divisors is an integer number (2798985).

Almost surely, 2^20608601 is an apocalyptic number.

It is an amenable number.

20608601 is a deficient number, since it is larger than the sum of its proper divisors (1783279).

20608601 is a wasteful number, since it uses less digits than its factorization.

20608601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14155.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 20608601 is about 4539.6697016413. The cubic root of 20608601 is about 274.1676252444.

The spelling of 20608601 in words is "twenty million, six hundred eight thousand, six hundred one".