722070531 has 40 divisors (see below), whose sum is σ = 1327581024. Its totient is φ = 380868480.

The previous prime is 722070527. The next prime is 722070551. The reversal of 722070531 is 135070227.

It is not a de Polignac number, because 722070531 - 2² = 722070527 is a prime.

It is a super-2 number, since 2×722070531² = 1042771703477243922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 722070495 and 722070504.

It is not an unprimeable number, because it can be changed into a prime (722070551) 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 39 ways as a sum of consecutive naturals, for example, 41610 + ... + 56351.

Almost surely, 2^722070531 is an apocalyptic number.

722070531 is a deficient number, since it is larger than the sum of its proper divisors (605510493).

722070531 is a wasteful number, since it uses less digits than its factorization.

722070531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97993 (or 97984 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 722070531 is about 26871.3700990478. The cubic root of 722070531 is about 897.1392833009.

The spelling of 722070531 in words is "seven hundred twenty-two million, seventy thousand, five hundred thirty-one".