5643298729 has 4 divisors (see below), whose sum is σ = 5738947920. Its totient is φ = 5547649540.

The previous prime is 5643298723. The next prime is 5643298757. The reversal of 5643298729 is 9278923465.

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 a cyclic number.

It is not a de Polignac number, because 5643298729 - 2⁵ = 5643298697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5643298729.

It is not an unprimeable number, because it can be changed into a prime (5643298723) 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, 47824507 + ... + 47824624.

It is an arithmetic number, because the mean of its divisors is an integer number (1434736980).

Almost surely, 2^5643298729 is an apocalyptic number.

5643298729 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

5643298729 is a deficient number, since it is larger than the sum of its proper divisors (95649191).

5643298729 is an equidigital number, since it uses as much as digits as its factorization.

5643298729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95649190.

The product of its digits is 6531840, while the sum is 55.

The square root of 5643298729 is about 75121.8924748305. The cubic root of 5643298729 is about 1780.3730574602.

The spelling of 5643298729 in words is "five billion, six hundred forty-three million, two hundred ninety-eight thousand, seven hundred twenty-nine".