539690385 has 16 divisors (see below), whose sum is σ = 929928384. Its totient is φ = 265693632.

The previous prime is 539690341. The next prime is 539690419. The reversal of 539690385 is 583096935.

It is not a de Polignac number, because 539690385 - 2²¹ = 537593233 is a prime.

It is a super-2 number, since 2×539690385² = 582531423322896450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1383627 + ... + 1384016.

It is an arithmetic number, because the mean of its divisors is an integer number (58120524).

Almost surely, 2^539690385 is an apocalyptic number.

It is an amenable number.

539690385 is a deficient number, since it is larger than the sum of its proper divisors (390237999).

539690385 is a wasteful number, since it uses less digits than its factorization.

539690385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767664.

The product of its (nonzero) digits is 874800, while the sum is 48.

The square root of 539690385 is about 23231.2372679545. The cubic root of 539690385 is about 814.1696210741.

The spelling of 539690385 in words is "five hundred thirty-nine million, six hundred ninety thousand, three hundred eighty-five".