72959587 has 4 divisors (see below), whose sum is σ = 72976680. Its totient is φ = 72942496.

The previous prime is 72959543. The next prime is 72959591. The reversal of 72959587 is 78595927.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72959587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72959527) 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, 3864 + ... + 12682.

It is an arithmetic number, because the mean of its divisors is an integer number (18244170).

Almost surely, 2^72959587 is an apocalyptic number.

72959587 is a deficient number, since it is larger than the sum of its proper divisors (17093).

72959587 is an equidigital number, since it uses as much as digits as its factorization.

72959587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17092.

The product of its digits is 1587600, while the sum is 52.

The square root of 72959587 is about 8541.6384259696. The cubic root of 72959587 is about 417.8567822809.

The spelling of 72959587 in words is "seventy-two million, nine hundred fifty-nine thousand, five hundred eighty-seven".