87915833 has 2 divisors, whose sum is σ = 87915834. Its totient is φ = 87915832.

The previous prime is 87915827. The next prime is 87915881. The reversal of 87915833 is 33851978.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59474944 + 28440889 = 7712^2 + 5333^2 .

It is a cyclic number.

It is not a de Polignac number, because 87915833 - 2¹⁶ = 87850297 is a prime.

It is not a weakly prime, because it can be changed into another prime (87911833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43957916 + 43957917.

It is an arithmetic number, because the mean of its divisors is an integer number (43957917).

Almost surely, 2^87915833 is an apocalyptic number.

It is an amenable number.

87915833 is a deficient number, since it is larger than the sum of its proper divisors (1).

87915833 is an equidigital number, since it uses as much as digits as its factorization.

87915833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 44.

The square root of 87915833 is about 9376.3443302814. The cubic root of 87915833 is about 444.6541655067.

The spelling of 87915833 in words is "eighty-seven million, nine hundred fifteen thousand, eight hundred thirty-three".