87481733 has 2 divisors, whose sum is σ = 87481734. Its totient is φ = 87481732.

The previous prime is 87481717. The next prime is 87481739. The reversal of 87481733 is 33718478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86527204 + 954529 = 9302^2 + 977^2 .

It is a cyclic number.

It is not a de Polignac number, because 87481733 - 2⁴ = 87481717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87481739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43740866 + 43740867.

It is an arithmetic number, because the mean of its divisors is an integer number (43740867).

Almost surely, 2^87481733 is an apocalyptic number.

It is an amenable number.

87481733 is a deficient number, since it is larger than the sum of its proper divisors (1).

87481733 is an equidigital number, since it uses as much as digits as its factorization.

87481733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 41.

The square root of 87481733 is about 9353.1670037480. The cubic root of 87481733 is about 443.9211047357.

The spelling of 87481733 in words is "eighty-seven million, four hundred eighty-one thousand, seven hundred thirty-three".