539972761 has 4 divisors (see below), whose sum is σ = 568392400. Its totient is φ = 511553124.

The previous prime is 539972749. The next prime is 539972777. The reversal of 539972761 is 167279935.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 539972761 - 2⁹ = 539972249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (539972711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14209791 + ... + 14209828.

It is an arithmetic number, because the mean of its divisors is an integer number (142098100).

Almost surely, 2^539972761 is an apocalyptic number.

It is an amenable number.

539972761 is a deficient number, since it is larger than the sum of its proper divisors (28419639).

539972761 is a wasteful number, since it uses less digits than its factorization.

539972761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28419638.

The product of its digits is 714420, while the sum is 49.

The square root of 539972761 is about 23237.3139798902. The cubic root of 539972761 is about 814.3115925220.

The spelling of 539972761 in words is "five hundred thirty-nine million, nine hundred seventy-two thousand, seven hundred sixty-one".