72660527 has 4 divisors (see below), whose sum is σ = 72679656. Its totient is φ = 72641400.

The previous prime is 72660517. The next prime is 72660529. The reversal of 72660527 is 72506627.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72660527 - 2⁸ = 72660271 is a prime.

It is a Duffinian number.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1724 + ... + 12177.

It is an arithmetic number, because the mean of its divisors is an integer number (18169914).

Almost surely, 2^72660527 is an apocalyptic number.

72660527 is a deficient number, since it is larger than the sum of its proper divisors (19129).

72660527 is a wasteful number, since it uses less digits than its factorization.

72660527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19128.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 72660527 is about 8524.1144408085. The cubic root of 72660527 is about 417.2850713453.

The spelling of 72660527 in words is "seventy-two million, six hundred sixty thousand, five hundred twenty-seven".