72660526 has 16 divisors (see below), whose sum is σ = 113035104. Its totient is φ = 35001504.

The previous prime is 72660517. The next prime is 72660529. The reversal of 72660526 is 62506627.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 72660491 and 72660500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72660529) 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 7 ways as a sum of consecutive naturals, for example, 2856 + ... + 12388.

It is an arithmetic number, because the mean of its divisors is an integer number (7064694).

Almost surely, 2^72660526 is an apocalyptic number.

72660526 is a deficient number, since it is larger than the sum of its proper divisors (40374578).

72660526 is a wasteful number, since it uses less digits than its factorization.

72660526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9675.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 72660526 is about 8524.1143821514. The cubic root of 72660526 is about 417.2850694310.

The spelling of 72660526 in words is "seventy-two million, six hundred sixty thousand, five hundred twenty-six".