20097355 has 8 divisors (see below), whose sum is σ = 24141312. Its totient is φ = 16061568.

The previous prime is 20097317. The next prime is 20097367. The reversal of 20097355 is 55379002.

It is a happy number.

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 20097355 - 2¹⁵ = 20064587 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7107 + ... + 9523.

It is an arithmetic number, because the mean of its divisors is an integer number (3017664).

Almost surely, 2^20097355 is an apocalyptic number.

20097355 is a deficient number, since it is larger than the sum of its proper divisors (4043957).

20097355 is a wasteful number, since it uses less digits than its factorization.

20097355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4085.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 20097355 is about 4483.0073611360. The cubic root of 20097355 is about 271.8814858188.

The spelling of 20097355 in words is "twenty million, ninety-seven thousand, three hundred fifty-five".