20047467 has 32 divisors (see below), whose sum is σ = 30998016. Its totient is φ = 11404800.

The previous prime is 20047453. The next prime is 20047493. The reversal of 20047467 is 76474002.

It is not a de Polignac number, because 20047467 - 2¹¹ = 20045419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20047367) 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, 46083 + ... + 46515.

It is an arithmetic number, because the mean of its divisors is an integer number (968688).

Almost surely, 2^20047467 is an apocalyptic number.

20047467 is a deficient number, since it is larger than the sum of its proper divisors (10950549).

20047467 is a wasteful number, since it uses less digits than its factorization.

20047467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 20047467 is about 4477.4397818396. The cubic root of 20047467 is about 271.6563340988.

The spelling of 20047467 in words is "twenty million, forty-seven thousand, four hundred sixty-seven".