72210704 has 20 divisors (see below), whose sum is σ = 140056140. Its totient is φ = 36067200.

The previous prime is 72210703. The next prime is 72210707. The reversal of 72210704 is 40701227.

It can be written as a sum of positive squares in 2 ways, for example, as 774400 + 71436304 = 880^2 + 8452^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 72210704.

It is not an unprimeable number, because it can be changed into a prime (72210701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19082 + ... + 22550.

It is an arithmetic number, because the mean of its divisors is an integer number (7002807).

Almost surely, 2^72210704 is an apocalyptic number.

It is an amenable number.

72210704 is a deficient number, since it is larger than the sum of its proper divisors (67845436).

72210704 is a wasteful number, since it uses less digits than its factorization.

72210704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4778 (or 4772 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 72210704 is about 8497.6881561987. The cubic root of 72210704 is about 416.4221860360.

The spelling of 72210704 in words is "seventy-two million, two hundred ten thousand, seven hundred four".