20604417 has 8 divisors (see below), whose sum is σ = 28918560. Its totient is φ = 13013280.

The previous prime is 20604407. The next prime is 20604431. The reversal of 20604417 is 71440602.

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

It is not a de Polignac number, because 20604417 - 2¹⁴ = 20588033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20604407) 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, 180684 + ... + 180797.

It is an arithmetic number, because the mean of its divisors is an integer number (3614820).

Almost surely, 2^20604417 is an apocalyptic number.

It is an amenable number.

20604417 is a deficient number, since it is larger than the sum of its proper divisors (8314143).

20604417 is a wasteful number, since it uses less digits than its factorization.

20604417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361503.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 20604417 is about 4539.2088517714. The cubic root of 20604417 is about 274.1490699661.

The spelling of 20604417 in words is "twenty million, six hundred four thousand, four hundred seventeen".