87628611 has 16 divisors (see below), whose sum is σ = 136256000. Its totient is φ = 50072904.

The previous prime is 87628601. The next prime is 87628621. The reversal of 87628611 is 11682678.

It is an interprime number because it is at equal distance from previous prime (87628601) and next prime (87628621).

It is not a de Polignac number, because 87628611 - 2⁵ = 87628579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87628611.

It is not an unprimeable number, because it can be changed into a prime (87628601) 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 in 15 ways as a sum of consecutive naturals, for example, 41551 + ... + 43608.

It is an arithmetic number, because the mean of its divisors is an integer number (8516000).

Almost surely, 2^87628611 is an apocalyptic number.

87628611 is a deficient number, since it is larger than the sum of its proper divisors (48627389).

87628611 is an equidigital number, since it uses as much as digits as its factorization.

87628611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85183 (or 85169 counting only the distinct ones).

The product of its digits is 32256, while the sum is 39.

The square root of 87628611 is about 9361.0154897853. The cubic root of 87628611 is about 444.1694071916.

The spelling of 87628611 in words is "eighty-seven million, six hundred twenty-eight thousand, six hundred eleven".