20854299 has 4 divisors (see below), whose sum is σ = 27805736. Its totient is φ = 13902864.

The previous prime is 20854297. The next prime is 20854313. The reversal of 20854299 is 99245802.

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

It is not a de Polignac number, because 20854299 - 2¹ = 20854297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20854297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3475714 + ... + 3475719.

It is an arithmetic number, because the mean of its divisors is an integer number (6951434).

Almost surely, 2^20854299 is an apocalyptic number.

20854299 is a deficient number, since it is larger than the sum of its proper divisors (6951437).

20854299 is an equidigital number, since it uses as much as digits as its factorization.

20854299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6951436.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 20854299 is about 4566.6507420647. The cubic root of 20854299 is about 275.2528759369.

The spelling of 20854299 in words is "twenty million, eight hundred fifty-four thousand, two hundred ninety-nine".