20956098 has 16 divisors (see below), whose sum is σ = 42113376. Its totient is φ = 6951840.

The previous prime is 20956081. The next prime is 20956109. The reversal of 20956098 is 89065902.

It is a happy number.

It is a Curzon 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, 7011 + ... + 9542.

It is an arithmetic number, because the mean of its divisors is an integer number (2632086).

Almost surely, 2^20956098 is an apocalyptic number.

20956098 is an abundant number, since it is smaller than the sum of its proper divisors (21157278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20956098 is a wasteful number, since it uses less digits than its factorization.

20956098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16769.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 20956098 is about 4577.7830879149. The cubic root of 20956098 is about 275.7000259043.

The spelling of 20956098 in words is "twenty million, nine hundred fifty-six thousand, ninety-eight".