720722267 has 8 divisors (see below), whose sum is σ = 733306320. Its totient is φ = 708238080.

The previous prime is 720722263. The next prime is 720722281. The reversal of 720722267 is 762227027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 720722267 - 2² = 720722263 is a prime.

It is a super-2 number, since 2×720722267² = 1038881172299238578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720722263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10334 + ... + 39347.

It is an arithmetic number, because the mean of its divisors is an integer number (91663290).

Almost surely, 2^720722267 is an apocalyptic number.

720722267 is a deficient number, since it is larger than the sum of its proper divisors (12584053).

720722267 is a wasteful number, since it uses less digits than its factorization.

720722267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49933.

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 720722267 is about 26846.2710073485. The cubic root of 720722267 is about 896.5805501489.

The spelling of 720722267 in words is "seven hundred twenty million, seven hundred twenty-two thousand, two hundred sixty-seven".