539623401 has 24 divisors (see below), whose sum is σ = 797571264. Its totient is φ = 323854080.

The previous prime is 539623397. The next prime is 539623439. The reversal of 539623401 is 104326935.

It is not a de Polignac number, because 539623401 - 2² = 539623397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (539623471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6411 + ... + 33471.

It is an arithmetic number, because the mean of its divisors is an integer number (33232136).

Almost surely, 2^539623401 is an apocalyptic number.

539623401 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

539623401 is a deficient number, since it is larger than the sum of its proper divisors (257947863).

539623401 is a wasteful number, since it uses less digits than its factorization.

539623401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27121 (or 27104 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 539623401 is about 23229.7955436547. The cubic root of 539623401 is about 814.1359359614.

The spelling of 539623401 in words is "five hundred thirty-nine million, six hundred twenty-three thousand, four hundred one".