20611473 has 32 divisors (see below), whose sum is σ = 29998080. Its totient is φ = 12555840.

The previous prime is 20611471. The next prime is 20611483. The reversal of 20611473 is 37411602.

It is not a de Polignac number, because 20611473 - 2¹ = 20611471 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20611471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248290 + ... + 248372.

It is an arithmetic number, because the mean of its divisors is an integer number (937440).

Almost surely, 2^20611473 is an apocalyptic number.

20611473 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20611473 is a deficient number, since it is larger than the sum of its proper divisors (9386607).

20611473 is a wasteful number, since it uses less digits than its factorization.

20611473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 20611473 is about 4539.9860131943. The cubic root of 20611473 is about 274.1803605880.

The spelling of 20611473 in words is "twenty million, six hundred eleven thousand, four hundred seventy-three".