539478779 has 12 divisors (see below), whose sum is σ = 642865608. Its totient is φ = 451130400.

The previous prime is 539478769. The next prime is 539478781. The reversal of 539478779 is 977874935.

It is not a de Polignac number, because 539478779 - 2⁴ = 539478763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (539478769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132257 + ... + 136274.

It is an arithmetic number, because the mean of its divisors is an integer number (53572134).

Almost surely, 2^539478779 is an apocalyptic number.

539478779 is a deficient number, since it is larger than the sum of its proper divisors (103386829).

539478779 is a wasteful number, since it uses less digits than its factorization.

539478779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268586 (or 268579 counting only the distinct ones).

The product of its digits is 13335840, while the sum is 59.

The square root of 539478779 is about 23226.6824794244. The cubic root of 539478779 is about 814.0631985133.

It can be divided in two parts, 53947 and 8779, that added together give a palindrome (62726).

The spelling of 539478779 in words is "five hundred thirty-nine million, four hundred seventy-eight thousand, seven hundred seventy-nine".