20928098 has 8 divisors (see below), whose sum is σ = 31552092. Its totient is φ = 10410736.

The previous prime is 20928079. The next prime is 20928107. The reversal of 20928098 is 89082902.

It can be written as a sum of positive squares in 2 ways, for example, as 14235529 + 6692569 = 3773^2 + 2587^2 .

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

It is a Curzon 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, 26165 + ... + 26952.

Almost surely, 2^20928098 is an apocalyptic number.

20928098 is a deficient number, since it is larger than the sum of its proper divisors (10623994).

20928098 is a wasteful number, since it uses less digits than its factorization.

20928098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53316.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 20928098 is about 4574.7238168003. The cubic root of 20928098 is about 275.5771811298.

The spelling of 20928098 in words is "twenty million, nine hundred twenty-eight thousand, ninety-eight".