722270775 has 24 divisors (see below), whose sum is σ = 1194994944. Its totient is φ = 384940000.

The previous prime is 722270737. The next prime is 722270819. The reversal of 722270775 is 577072227.

It is a de Polignac number, because none of the positive numbers 2^k-722270775 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149650 + ... + 154400.

It is an arithmetic number, because the mean of its divisors is an integer number (49791456).

Almost surely, 2^722270775 is an apocalyptic number.

722270775 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

722270775 is a deficient number, since it is larger than the sum of its proper divisors (472724169).

722270775 is a wasteful number, since it uses less digits than its factorization.

722270775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6791 (or 6786 counting only the distinct ones).

The product of its (nonzero) digits is 96040, while the sum is 39.

The square root of 722270775 is about 26875.0958137827. The cubic root of 722270775 is about 897.2222069429. Note that the first 4 decimals are identical.

The spelling of 722270775 in words is "seven hundred twenty-two million, two hundred seventy thousand, seven hundred seventy-five".