722280847 has 8 divisors (see below), whose sum is σ = 741223296. Its totient is φ = 703435992.

The previous prime is 722280829. The next prime is 722280869. The reversal of 722280847 is 748082227.

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 722280847 - 2¹⁹ = 721756559 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 (722280817) 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, 9283 + ... + 39124.

It is an arithmetic number, because the mean of its divisors is an integer number (92652912).

Almost surely, 2^722280847 is an apocalyptic number.

722280847 is a deficient number, since it is larger than the sum of its proper divisors (18942449).

722280847 is a wasteful number, since it uses less digits than its factorization.

722280847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48797.

The product of its (nonzero) digits is 100352, while the sum is 40.

The square root of 722280847 is about 26875.2831985079. The cubic root of 722280847 is about 897.2263774841.

The spelling of 722280847 in words is "seven hundred twenty-two million, two hundred eighty thousand, eight hundred forty-seven".