539798634 has 64 divisors (see below), whose sum is σ = 1256169600. Its totient is φ = 171593856.

The previous prime is 539798599. The next prime is 539798669. The reversal of 539798634 is 436897935.

539798634 is a `hidden beast` number, since 539 + 79 + 8 + 6 + 34 = 666.

It is an interprime number because it is at equal distance from previous prime (539798599) and next prime (539798669).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127902 + ... + 132054.

It is an arithmetic number, because the mean of its divisors is an integer number (19627650).

Almost surely, 2^539798634 is an apocalyptic number.

539798634 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 539798634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (628084800).

539798634 is an abundant number, since it is smaller than the sum of its proper divisors (716370966).

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

539798634 is a wasteful number, since it uses less digits than its factorization.

539798634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4276 (or 4270 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The square root of 539798634 is about 23233.5669667832. The cubic root of 539798634 is about 814.2240517612.

The spelling of 539798634 in words is "five hundred thirty-nine million, seven hundred ninety-eight thousand, six hundred thirty-four".