539698073 has 4 divisors (see below), whose sum is σ = 540579108. Its totient is φ = 538817040.

The previous prime is 539698063. The next prime is 539698087. The reversal of 539698073 is 370896935.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29073664 + 510624409 = 5392^2 + 22597^2 .

It is a cyclic number.

It is not a de Polignac number, because 539698073 - 2¹⁴ = 539681689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (539698063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439598 + ... + 440823.

It is an arithmetic number, because the mean of its divisors is an integer number (135144777).

Almost surely, 2^539698073 is an apocalyptic number.

It is an amenable number.

539698073 is a deficient number, since it is larger than the sum of its proper divisors (881035).

539698073 is an equidigital number, since it uses as much as digits as its factorization.

539698073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881034.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The square root of 539698073 is about 23231.4027342302. The cubic root of 539698073 is about 814.1734870600.

The spelling of 539698073 in words is "five hundred thirty-nine million, six hundred ninety-eight thousand, seventy-three".