20534763 has 24 divisors (see below), whose sum is σ = 29431488. Its totient is φ = 12730608.

The previous prime is 20534753. The next prime is 20534783. The reversal of 20534763 is 36743502.

It is not a de Polignac number, because 20534763 - 2⁴ = 20534747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20534763.

It is not an unprimeable number, because it can be changed into a prime (20534713) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72420 + ... + 72702.

It is an arithmetic number, because the mean of its divisors is an integer number (1226312).

Almost surely, 2^20534763 is an apocalyptic number.

20534763 is a deficient number, since it is larger than the sum of its proper divisors (8896725).

20534763 is a wasteful number, since it uses less digits than its factorization.

20534763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 20534763 is about 4531.5298741154. The cubic root of 20534763 is about 273.8397974835.

The spelling of 20534763 in words is "twenty million, five hundred thirty-four thousand, seven hundred sixty-three".