20098057 has 8 divisors (see below), whose sum is σ = 23312576. Its totient is φ = 16969392.

The previous prime is 20098049. The next prime is 20098061. The reversal of 20098057 is 75089002.

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 20098057 - 2³ = 20098049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20098007) 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, 20958 + ... + 21895.

It is an arithmetic number, because the mean of its divisors is an integer number (2914072).

Almost surely, 2^20098057 is an apocalyptic number.

It is an amenable number.

20098057 is a deficient number, since it is larger than the sum of its proper divisors (3214519).

20098057 is an equidigital number, since it uses as much as digits as its factorization.

20098057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42927.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 20098057 is about 4483.0856561079. The cubic root of 20098057 is about 271.8846513859.

The spelling of 20098057 in words is "twenty million, ninety-eight thousand, fifty-seven".