20764473 has 8 divisors (see below), whose sum is σ = 29143200. Its totient is φ = 13114368.

The previous prime is 20764427. The next prime is 20764487. The reversal of 20764473 is 37446702.

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

It is not a de Polignac number, because 20764473 - 2¹⁷ = 20633401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20764673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182088 + ... + 182201.

It is an arithmetic number, because the mean of its divisors is an integer number (3642900).

Almost surely, 2^20764473 is an apocalyptic number.

It is an amenable number.

20764473 is a deficient number, since it is larger than the sum of its proper divisors (8378727).

20764473 is a wasteful number, since it uses less digits than its factorization.

20764473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364311.

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 20764473 is about 4556.8051307907. The cubic root of 20764473 is about 274.8571070313.

The spelling of 20764473 in words is "twenty million, seven hundred sixty-four thousand, four hundred seventy-three".