20730527 has 6 divisors (see below), whose sum is σ = 20879208. Its totient is φ = 20582852.

The previous prime is 20730491. The next prime is 20730529. The reversal of 20730527 is 72503702.

It is not a de Polignac number, because 20730527 - 2⁸ = 20730271 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20730496 and 20730505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20730529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31718 + ... + 32364.

It is an arithmetic number, because the mean of its divisors is an integer number (3479868).

Almost surely, 2^20730527 is an apocalyptic number.

20730527 is a deficient number, since it is larger than the sum of its proper divisors (148681).

20730527 is an frugal number, since it uses more digits than its factorization.

20730527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005 (or 826 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 20730527 is about 4553.0788484277. The cubic root of 20730527 is about 274.7072454801.

The spelling of 20730527 in words is "twenty million, seven hundred thirty thousand, five hundred twenty-seven".