722571011 has 4 divisors (see below), whose sum is σ = 739375032. Its totient is φ = 705766992.

The previous prime is 722570983. The next prime is 722571037. The reversal of 722571011 is 110175227.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 722571011 - 2¹⁴ = 722554627 is a prime.

It is a super-3 number, since 3×722571011³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722571071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8401946 + ... + 8402031.

It is an arithmetic number, because the mean of its divisors is an integer number (184843758).

Almost surely, 2^722571011 is an apocalyptic number.

722571011 is a deficient number, since it is larger than the sum of its proper divisors (16804021).

722571011 is a wasteful number, since it uses less digits than its factorization.

722571011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16804020.

The product of its (nonzero) digits is 980, while the sum is 26.

The square root of 722571011 is about 26880.6809995580. The cubic root of 722571011 is about 897.3465098586.

The spelling of 722571011 in words is "seven hundred twenty-two million, five hundred seventy-one thousand, eleven".