72200756 has 6 divisors (see below), whose sum is σ = 126351330. Its totient is φ = 36100376.

The previous prime is 72200753. The next prime is 72200773. The reversal of 72200756 is 65700227.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 60062500 + 12138256 = 7750^2 + 3484^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72200753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9025091 + ... + 9025098.

It is an arithmetic number, because the mean of its divisors is an integer number (21058555).

Almost surely, 2^72200756 is an apocalyptic number.

It is an amenable number.

72200756 is a deficient number, since it is larger than the sum of its proper divisors (54150574).

72200756 is a wasteful number, since it uses less digits than its factorization.

72200756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18050193 (or 18050191 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 72200756 is about 8497.1028003667. The cubic root of 72200756 is about 416.4030625639.

The spelling of 72200756 in words is "seventy-two million, two hundred thousand, seven hundred fifty-six".