720049529 has 4 divisors (see below), whose sum is σ = 729164160. Its totient is φ = 710934900.

The previous prime is 720049513. The next prime is 720049543. The reversal of 720049529 is 925940027.

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 720049529 - 2⁴ = 720049513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 720049492 and 720049501.

It is not an unprimeable number, because it can be changed into a prime (720049129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4557197 + ... + 4557354.

It is an arithmetic number, because the mean of its divisors is an integer number (182291040).

Almost surely, 2^720049529 is an apocalyptic number.

720049529 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

It is an amenable number.

720049529 is a deficient number, since it is larger than the sum of its proper divisors (9114631).

720049529 is an equidigital number, since it uses as much as digits as its factorization.

720049529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9114630.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 720049529 is about 26833.7386325499. The cubic root of 720049529 is about 896.3015006454.

The spelling of 720049529 in words is "seven hundred twenty million, forty-nine thousand, five hundred twenty-nine".