20924463 has 8 divisors (see below), whose sum is σ = 31884928. Its totient is φ = 11956824.

The previous prime is 20924461. The next prime is 20924471. The reversal of 20924463 is 36442902.

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

It is not a de Polignac number, because 20924463 - 2¹ = 20924461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20924463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20924461) 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, 498181 + ... + 498222.

It is an arithmetic number, because the mean of its divisors is an integer number (3985616).

Almost surely, 2^20924463 is an apocalyptic number.

20924463 is a deficient number, since it is larger than the sum of its proper divisors (10960465).

20924463 is an equidigital number, since it uses as much as digits as its factorization.

20924463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996413.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 20924463 is about 4574.3265078042. The cubic root of 20924463 is about 275.5612252117.

It can be divided in two parts, 2092 and 4463, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 20924463 in words is "twenty million, nine hundred twenty-four thousand, four hundred sixty-three".