87245611 has 2 divisors, whose sum is σ = 87245612. Its totient is φ = 87245610.

The previous prime is 87245597. The next prime is 87245621. The reversal of 87245611 is 11654278.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87245611 - 2⁹ = 87245099 is a prime.

It is a super-2 number, since 2×87245611² = 15223593277526642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (87245621) 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 as a sum of consecutive naturals, namely, 43622805 + 43622806.

It is an arithmetic number, because the mean of its divisors is an integer number (43622806).

Almost surely, 2^87245611 is an apocalyptic number.

87245611 is a deficient number, since it is larger than the sum of its proper divisors (1).

87245611 is an equidigital number, since it uses as much as digits as its factorization.

87245611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 34.

The square root of 87245611 is about 9340.5359053964. The cubic root of 87245611 is about 443.5213489492.

Adding to 87245611 its reverse (11654278), we get a palindrome (98899889).

The spelling of 87245611 in words is "eighty-seven million, two hundred forty-five thousand, six hundred eleven".