722472215 has 16 divisors (see below), whose sum is σ = 909506880. Its totient is φ = 550179840.

The previous prime is 722472209. The next prime is 722472217. The reversal of 722472215 is 512274227.

It is not a de Polignac number, because 722472215 - 2⁶ = 722472151 is a prime.

It is a super-4 number, since 4×722472215⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722472217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24794 + ... + 45383.

It is an arithmetic number, because the mean of its divisors is an integer number (56844180).

Almost surely, 2^722472215 is an apocalyptic number.

722472215 is a deficient number, since it is larger than the sum of its proper divisors (187034665).

722472215 is a wasteful number, since it uses less digits than its factorization.

722472215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70282.

The product of its digits is 15680, while the sum is 32.

The square root of 722472215 is about 26878.8432600810. The cubic root of 722472215 is about 897.3056104013.

The spelling of 722472215 in words is "seven hundred twenty-two million, four hundred seventy-two thousand, two hundred fifteen".