87333109 has 2 divisors, whose sum is σ = 87333110. Its totient is φ = 87333108.

The previous prime is 87333091. The next prime is 87333143. The reversal of 87333109 is 90133378.

Together with previous prime (87333091) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (87333143) can be obtained adding 87333109 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55726225 + 31606884 = 7465^2 + 5622^2 .

It is a cyclic number.

It is not a de Polignac number, because 87333109 - 2¹³ = 87324917 is a prime.

It is a super-3 number, since 3×87333109³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87333149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43666554 + 43666555.

It is an arithmetic number, because the mean of its divisors is an integer number (43666555).

Almost surely, 2^87333109 is an apocalyptic number.

It is an amenable number.

87333109 is a deficient number, since it is larger than the sum of its proper divisors (1).

87333109 is an equidigital number, since it uses as much as digits as its factorization.

87333109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 87333109 is about 9345.2185100189. The cubic root of 87333109 is about 443.6695675419.

The spelling of 87333109 in words is "eighty-seven million, three hundred thirty-three thousand, one hundred nine".