72618527 has 4 divisors (see below), whose sum is σ = 72651816. Its totient is φ = 72585240.

The previous prime is 72618517. The next prime is 72618541. The reversal of 72618527 is 72581627.

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 72618527 - 2⁶ = 72618463 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 (72618517) 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, 13124 + ... + 17817.

It is an arithmetic number, because the mean of its divisors is an integer number (18162954).

Almost surely, 2^72618527 is an apocalyptic number.

72618527 is a deficient number, since it is larger than the sum of its proper divisors (33289).

72618527 is a wasteful number, since it uses less digits than its factorization.

72618527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33288.

The product of its digits is 47040, while the sum is 38.

The square root of 72618527 is about 8521.6504856747. The cubic root of 72618527 is about 417.2046546842.

The spelling of 72618527 in words is "seventy-two million, six hundred eighteen thousand, five hundred twenty-seven".