722987132 has 12 divisors (see below), whose sum is σ = 1445974320. Its totient is φ = 309851616.

The previous prime is 722987131. The next prime is 722987137. The reversal of 722987132 is 231789227.

722987132 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 722987132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722987131) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12910457 + ... + 12910512.

It is an arithmetic number, because the mean of its divisors is an integer number (120497860).

Almost surely, 2^722987132 is an apocalyptic number.

It is an amenable number.

722987132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

722987132 is a wasteful number, since it uses less digits than its factorization.

722987132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25820980 (or 25820978 counting only the distinct ones).

The product of its digits is 84672, while the sum is 41.

The square root of 722987132 is about 26888.4200353981. The cubic root of 722987132 is about 897.5187342556.

The spelling of 722987132 in words is "seven hundred twenty-two million, nine hundred eighty-seven thousand, one hundred thirty-two".