939870563 has 2 divisors, whose sum is σ = 939870564. Its totient is φ = 939870562.

The previous prime is 939870557. The next prime is 939870577. The reversal of 939870563 is 365078939.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 939870563 - 2⁶ = 939870499 is a prime.

It is not a weakly prime, because it can be changed into another prime (939870583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469935281 + 469935282.

It is an arithmetic number, because the mean of its divisors is an integer number (469935282).

Almost surely, 2^939870563 is an apocalyptic number.

939870563 is a deficient number, since it is larger than the sum of its proper divisors (1).

939870563 is an equidigital number, since it uses as much as digits as its factorization.

939870563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The square root of 939870563 is about 30657.3084761203. The cubic root of 939870563 is about 979.5411439966.

The spelling of 939870563 in words is "nine hundred thirty-nine million, eight hundred seventy thousand, five hundred sixty-three".