720477699 has 4 divisors (see below), whose sum is σ = 960636936. Its totient is φ = 480318464.

The previous prime is 720477673. The next prime is 720477721. The reversal of 720477699 is 996774027.

It is a happy number.

720477699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 996774027 = 3 ⋅332258009.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-720477699 is a prime.

It is a super-2 number, since 2×720477699² = 1038176229512669202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (720476699) 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, 120079614 + ... + 120079619.

It is an arithmetic number, because the mean of its divisors is an integer number (240159234).

Almost surely, 2^720477699 is an apocalyptic number.

720477699 is a deficient number, since it is larger than the sum of its proper divisors (240159237).

720477699 is a wasteful number, since it uses less digits than its factorization.

720477699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240159236.

The product of its (nonzero) digits is 1333584, while the sum is 51.

The square root of 720477699 is about 26841.7156493396. The cubic root of 720477699 is about 896.4791242462.

The spelling of 720477699 in words is "seven hundred twenty million, four hundred seventy-seven thousand, six hundred ninety-nine".