20098655 has 4 divisors (see below), whose sum is σ = 24118392. Its totient is φ = 16078920.

The previous prime is 20098613. The next prime is 20098667. The reversal of 20098655 is 55689002.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20098655 - 2⁶ = 20098591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2009861 + ... + 2009870.

It is an arithmetic number, because the mean of its divisors is an integer number (6029598).

Almost surely, 2^20098655 is an apocalyptic number.

20098655 is a deficient number, since it is larger than the sum of its proper divisors (4019737).

20098655 is an equidigital number, since it uses as much as digits as its factorization.

20098655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4019736.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 20098655 is about 4483.1523507461. The cubic root of 20098655 is about 271.8873479220.

The spelling of 20098655 in words is "twenty million, ninety-eight thousand, six hundred fifty-five".