720427599 has 12 divisors (see below), whose sum is σ = 1076501400. Its totient is φ = 463723344.

The previous prime is 720427573. The next prime is 720427601. The reversal of 720427599 is 995724027.

It is not a de Polignac number, because 720427599 - 2⁹ = 720427087 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720427529) 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 11 ways as a sum of consecutive naturals, for example, 1379869 + ... + 1380390.

It is an arithmetic number, because the mean of its divisors is an integer number (89708450).

Almost surely, 2^720427599 is an apocalyptic number.

720427599 is a deficient number, since it is larger than the sum of its proper divisors (356073801).

720427599 is a wasteful number, since it uses less digits than its factorization.

720427599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760294 (or 2760291 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 720427599 is about 26840.7823842749. The cubic root of 720427599 is about 896.4583442160.

The spelling of 720427599 in words is "seven hundred twenty million, four hundred twenty-seven thousand, five hundred ninety-nine".