539439431 has 8 divisors (see below), whose sum is σ = 571116720. Its totient is φ = 508090752.

The previous prime is 539439389. The next prime is 539439437. The reversal of 539439431 is 134934935.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 539439431 - 2¹⁴ = 539423047 is a prime.

It is a super-2 number, since 2×539439431² = 581989799435207522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539439437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78770 + ... + 85343.

It is an arithmetic number, because the mean of its divisors is an integer number (71389590).

Almost surely, 2^539439431 is an apocalyptic number.

539439431 is a deficient number, since it is larger than the sum of its proper divisors (31677289).

539439431 is a wasteful number, since it uses less digits than its factorization.

539439431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164305.

The product of its digits is 174960, while the sum is 41.

The square root of 539439431 is about 23225.8354209273. The cubic root of 539439431 is about 814.0434062380.

The spelling of 539439431 in words is "five hundred thirty-nine million, four hundred thirty-nine thousand, four hundred thirty-one".