6484597729 has 3 divisors (see below), whose sum is σ = 6484678257. Its totient is φ = 6484517202.

The previous prime is 6484597727. The next prime is 6484597733. The reversal of 6484597729 is 9277954846.

The square root of 6484597729 is 80527.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 6484597729 - 2¹ = 6484597727 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6484597727) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 40264 + ... + 120790.

It is an arithmetic number, because the mean of its divisors is an integer number (2161559419).

Almost surely, 2^6484597729 is an apocalyptic number.

6484597729 is the 80527-th square number.

6484597729 is the 40264-th centered octagonal number.

It is an amenable number.

6484597729 is a deficient number, since it is larger than the sum of its proper divisors (80528).

6484597729 is an frugal number, since it uses more digits than its factorization.

6484597729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161054 (or 80527 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 61.

The cubic root of 6484597729 is about 1864.7803318291.

The spelling of 6484597729 in words is "six billion, four hundred eighty-four million, five hundred ninety-seven thousand, seven hundred twenty-nine".