72885587 has 2 divisors, whose sum is σ = 72885588. Its totient is φ = 72885586.

The previous prime is 72885583. The next prime is 72885599. The reversal of 72885587 is 78558827.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72885587 - 2² = 72885583 is a prime.

It is not a weakly prime, because it can be changed into another prime (72885583) 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 as a sum of consecutive naturals, namely, 36442793 + 36442794.

It is an arithmetic number, because the mean of its divisors is an integer number (36442794).

Almost surely, 2^72885587 is an apocalyptic number.

72885587 is a deficient number, since it is larger than the sum of its proper divisors (1).

72885587 is an equidigital number, since it uses as much as digits as its factorization.

72885587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1254400, while the sum is 50.

The square root of 72885587 is about 8537.3056054003. The cubic root of 72885587 is about 417.7154626675.

The spelling of 72885587 in words is "seventy-two million, eight hundred eighty-five thousand, five hundred eighty-seven".