720376117 has 4 divisors (see below), whose sum is σ = 720833920. Its totient is φ = 719918316.

The previous prime is 720376099. The next prime is 720376121. The reversal of 720376117 is 711673027.

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 a de Polignac number, because none of the positive numbers 2^k-720376117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720376147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226533 + ... + 229690.

It is an arithmetic number, because the mean of its divisors is an integer number (180208480).

Almost surely, 2^720376117 is an apocalyptic number.

It is an amenable number.

720376117 is a deficient number, since it is larger than the sum of its proper divisors (457803).

720376117 is a wasteful number, since it uses less digits than its factorization.

720376117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457802.

The product of its (nonzero) digits is 12348, while the sum is 34.

The square root of 720376117 is about 26839.8233414454. The cubic root of 720376117 is about 896.4369899684.

The spelling of 720376117 in words is "seven hundred twenty million, three hundred seventy-six thousand, one hundred seventeen".