20849086 has 16 divisors (see below), whose sum is σ = 33760800. Its totient is φ = 9626848.

The previous prime is 20849077. The next prime is 20849107. The reversal of 20849086 is 68094802.

It is a congruent 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, 6481 + ... + 9148.

It is an arithmetic number, because the mean of its divisors is an integer number (2110050).

Almost surely, 2^20849086 is an apocalyptic number.

20849086 is a deficient number, since it is larger than the sum of its proper divisors (12911714).

20849086 is a wasteful number, since it uses less digits than its factorization.

20849086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15683.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 20849086 is about 4566.0799379774. The cubic root of 20849086 is about 275.2299388146.

It can be divided in two parts, 208 and 49086, that added together give a palindrome (49294).

The spelling of 20849086 in words is "twenty million, eight hundred forty-nine thousand, eighty-six".