5223964729 has 3 divisors (see below), whose sum is σ = 5224037007. Its totient is φ = 5223892452.

The previous prime is 5223964703. The next prime is 5223964763. The reversal of 5223964729 is 9274693225.

The square root of 5223964729 is 72277.

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 can be written as a sum of positive squares in only one way, i.e., 4793485225 + 430479504 = 69235^2 + 20748^2 .

It is not a de Polignac number, because 5223964729 - 2¹⁹ = 5223440441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5223964429) 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, 36139 + ... + 108415.

It is an arithmetic number, because the mean of its divisors is an integer number (1741345669).

Almost surely, 2^5223964729 is an apocalyptic number.

5223964729 is the 72277-th square number.

5223964729 is the 36139-th centered octagonal number.

It is an amenable number.

5223964729 is a deficient number, since it is larger than the sum of its proper divisors (72278).

5223964729 is an frugal number, since it uses more digits than its factorization.

5223964729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144554 (or 72277 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 49.

The cubic root of 5223964729 is about 1735.1355666479.

Multiplying 5223964729 by its sum of digits (49), we get a square (255974271721 = 505939²).

The spelling of 5223964729 in words is "five billion, two hundred twenty-three million, nine hundred sixty-four thousand, seven hundred twenty-nine".