72527746 has 16 divisors (see below), whose sum is σ = 115421976. Its totient is φ = 34062336.

The previous prime is 72527743. The next prime is 72527779. The reversal of 72527746 is 64772527.

It can be written as a sum of positive squares in 4 ways, for example, as 71216721 + 1311025 = 8439^2 + 1145^2 .

It is a junction number, because it is equal to n+sod(n) for n = 72527699 and 72527708.

It is not an unprimeable number, because it can be changed into a prime (72527743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17770 + ... + 21466.

Almost surely, 2^72527746 is an apocalyptic number.

72527746 is a deficient number, since it is larger than the sum of its proper divisors (42894230).

72527746 is a wasteful number, since it uses less digits than its factorization.

72527746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4293.

The product of its digits is 164640, while the sum is 40.

The square root of 72527746 is about 8516.3223283293. The cubic root of 72527746 is about 417.0307319007.

The spelling of 72527746 in words is "seventy-two million, five hundred twenty-seven thousand, seven hundred forty-six".