539190864 has 80 divisors (see below), whose sum is σ = 1550545600. Its totient is φ = 179397504.

The previous prime is 539190857. The next prime is 539190871. The reversal of 539190864 is 468091935.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (539190857) and next prime (539190871).

It is a congruent number.

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, 370362 + ... + 371814.

It is an arithmetic number, because the mean of its divisors is an integer number (19381820).

Almost surely, 2^539190864 is an apocalyptic number.

539190864 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 539190864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (775272800).

539190864 is an abundant number, since it is smaller than the sum of its proper divisors (1011354736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

539190864 is a wasteful number, since it uses less digits than its factorization.

539190864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329 (or 2317 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 539190864 is about 23220.4837158919. The cubic root of 539190864 is about 813.9183533263.

The spelling of 539190864 in words is "five hundred thirty-nine million, one hundred ninety thousand, eight hundred sixty-four".