524864389 has 4 divisors (see below), whose sum is σ = 599845024. Its totient is φ = 449883756.

The previous prime is 524864363. The next prime is 524864429. The reversal of 524864389 is 983468425.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 524864389 - 2¹¹ = 524862341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (524864089) 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, 37490307 + ... + 37490320.

It is an arithmetic number, because the mean of its divisors is an integer number (149961256).

Almost surely, 2^524864389 is an apocalyptic number.

It is an amenable number.

524864389 is a deficient number, since it is larger than the sum of its proper divisors (74980635).

524864389 is an equidigital number, since it uses as much as digits as its factorization.

524864389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74980634.

The product of its digits is 1658880, while the sum is 49.

The square root of 524864389 is about 22909.9190090231. The cubic root of 524864389 is about 806.6448571349.

The spelling of 524864389 in words is "five hundred twenty-four million, eight hundred sixty-four thousand, three hundred eighty-nine".