539703891 has 20 divisors (see below), whose sum is σ = 834028800. Its totient is φ = 347394096.

The previous prime is 539703881. The next prime is 539703917. The reversal of 539703891 is 198307935.

It is a happy number.

It is not a de Polignac number, because 539703891 - 2⁵ = 539703859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (539703881) 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 19 ways as a sum of consecutive naturals, for example, 112531 + ... + 117228.

It is an arithmetic number, because the mean of its divisors is an integer number (41701440).

Almost surely, 2^539703891 is an apocalyptic number.

539703891 is a deficient number, since it is larger than the sum of its proper divisors (294324909).

539703891 is a wasteful number, since it uses less digits than its factorization.

539703891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229800 (or 229791 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 539703891 is about 23231.5279523324. The cubic root of 539703891 is about 814.1764126738.

The spelling of 539703891 in words is "five hundred thirty-nine million, seven hundred three thousand, eight hundred ninety-one".