720104069 has 4 divisors (see below), whose sum is σ = 720324096. Its totient is φ = 719884044.

The previous prime is 720103999. The next prime is 720104083. The reversal of 720104069 is 960401027.

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, and also an emirpimes, since its reverse is a distinct semiprime: 960401027 = 3001 ⋅320027.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-720104069 is a prime.

It is a super-2 number, since 2×720104069² = 1037099740380713522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720104089) 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, 105029 + ... + 111674.

It is an arithmetic number, because the mean of its divisors is an integer number (180081024).

Almost surely, 2^720104069 is an apocalyptic number.

It is an amenable number.

720104069 is a deficient number, since it is larger than the sum of its proper divisors (220027).

720104069 is a wasteful number, since it uses less digits than its factorization.

720104069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220026.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 720104069 is about 26834.7548712486. The cubic root of 720104069 is about 896.3241301302.

The spelling of 720104069 in words is "seven hundred twenty million, one hundred four thousand, sixty-nine".