87628833 has 6 divisors (see below), whose sum is σ = 126574994. Its totient is φ = 58419216.

The previous prime is 87628811. The next prime is 87628841. The reversal of 87628833 is 33882678.

It can be written as a sum of positive squares in only one way, i.e., 86266944 + 1361889 = 9288^2 + 1167^2 .

It is not a de Polignac number, because 87628833 - 2¹² = 87624737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87628843) 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 5 ways as a sum of consecutive naturals, for example, 4868260 + ... + 4868277.

Almost surely, 2^87628833 is an apocalyptic number.

It is an amenable number.

87628833 is a deficient number, since it is larger than the sum of its proper divisors (38946161).

87628833 is a wasteful number, since it uses less digits than its factorization.

87628833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9736543 (or 9736540 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 87628833 is about 9361.0273474657. The cubic root of 87628833 is about 444.1697822803.

The spelling of 87628833 in words is "eighty-seven million, six hundred twenty-eight thousand, eight hundred thirty-three".