920654563 has 4 divisors (see below), whose sum is σ = 920947168. Its totient is φ = 920361960.

The previous prime is 920654551. The next prime is 920654599. The reversal of 920654563 is 365456029.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 920654563 - 2²⁵ = 887100131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920654263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141531 + ... + 147892.

It is an arithmetic number, because the mean of its divisors is an integer number (230236792).

Almost surely, 2^920654563 is an apocalyptic number.

920654563 is a deficient number, since it is larger than the sum of its proper divisors (292605).

920654563 is a wasteful number, since it uses less digits than its factorization.

920654563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292604.

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 920654563 is about 30342.2900091605. The cubic root of 920654563 is about 972.8194311965.

The spelling of 920654563 in words is "nine hundred twenty million, six hundred fifty-four thousand, five hundred sixty-three".