87285733 has 2 divisors, whose sum is σ = 87285734. Its totient is φ = 87285732.

The previous prime is 87285727. The next prime is 87285749. The reversal of 87285733 is 33758278.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87272964 + 12769 = 9342^2 + 113^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87285733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87285733.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87285773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43642866 + 43642867.

It is an arithmetic number, because the mean of its divisors is an integer number (43642867).

Almost surely, 2^87285733 is an apocalyptic number.

It is an amenable number.

87285733 is a deficient number, since it is larger than the sum of its proper divisors (1).

87285733 is an equidigital number, since it uses as much as digits as its factorization.

87285733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 43.

The square root of 87285733 is about 9342.6833939720. The cubic root of 87285733 is about 443.5893265290.

The spelling of 87285733 in words is "eighty-seven million, two hundred eighty-five thousand, seven hundred thirty-three".