722211875 has 80 divisors (see below), whose sum is σ = 1154630400. Its totient is φ = 438480000.

The previous prime is 722211871. The next prime is 722211877. The reversal of 722211875 is 578112227.

It is a Cunningham number, because it is equal to 26874²-1.

It is not a de Polignac number, because 722211875 - 2² = 722211871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (722211871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2069201 + ... + 2069549.

It is an arithmetic number, because the mean of its divisors is an integer number (14432880).

Almost surely, 2^722211875 is an apocalyptic number.

722211875 is a deficient number, since it is larger than the sum of its proper divisors (432418525).

722211875 is a wasteful number, since it uses less digits than its factorization.

722211875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430 (or 415 counting only the distinct ones).

The product of its digits is 15680, while the sum is 35.

The square root of 722211875 is about 26873.9999813947. Note that the first 4 decimals coincide. The cubic root of 722211875 is about 897.1978172789.

The spelling of 722211875 in words is "seven hundred twenty-two million, two hundred eleven thousand, eight hundred seventy-five".