720117207 has 6 divisors (see below), whose sum is σ = 1040169312. Its totient is φ = 480078132.

The previous prime is 720117191. The next prime is 720117239. The reversal of 720117207 is 702711027.

It is not a de Polignac number, because 720117207 - 2⁴ = 720117191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720117257) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40006503 + ... + 40006520.

It is an arithmetic number, because the mean of its divisors is an integer number (173361552).

Almost surely, 2^720117207 is an apocalyptic number.

720117207 is a deficient number, since it is larger than the sum of its proper divisors (320052105).

720117207 is a wasteful number, since it uses less digits than its factorization.

720117207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80013029 (or 80013026 counting only the distinct ones).

The product of its (nonzero) digits is 1372, while the sum is 27.

The square root of 720117207 is about 26834.9996646171. Note that the first 3 decimals coincide. The cubic root of 720117207 is about 896.3295811177.

The spelling of 720117207 in words is "seven hundred twenty million, one hundred seventeen thousand, two hundred seven".