20767473 has 12 divisors (see below), whose sum is σ = 30056208. Its totient is φ = 13817880.

The previous prime is 20767457. The next prime is 20767477. The reversal of 20767473 is 37476702.

It is not a de Polignac number, because 20767473 - 2⁴ = 20767457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20767477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3318 + ... + 7248.

It is an arithmetic number, because the mean of its divisors is an integer number (2504684).

Almost surely, 2^20767473 is an apocalyptic number.

It is an amenable number.

20767473 is a deficient number, since it is larger than the sum of its proper divisors (9288735).

20767473 is a wasteful number, since it uses less digits than its factorization.

20767473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4524 (or 4521 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 20767473 is about 4557.1342969019. The cubic root of 20767473 is about 274.8703432869.

The spelling of 20767473 in words is "twenty million, seven hundred sixty-seven thousand, four hundred seventy-three".