87119069 has 2 divisors, whose sum is σ = 87119070. Its totient is φ = 87119068.

The previous prime is 87119029. The next prime is 87119093. The reversal of 87119069 is 96091178.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81180100 + 5938969 = 9010^2 + 2437^2 .

It is a cyclic number.

It is not a de Polignac number, because 87119069 - 2²⁴ = 70341853 is a prime.

It is a super-2 number, since 2×87119069² = 15179464366853522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87119029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43559534 + 43559535.

It is an arithmetic number, because the mean of its divisors is an integer number (43559535).

Almost surely, 2^87119069 is an apocalyptic number.

It is an amenable number.

87119069 is a deficient number, since it is larger than the sum of its proper divisors (1).

87119069 is an equidigital number, since it uses as much as digits as its factorization.

87119069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 87119069 is about 9333.7596390736. The cubic root of 87119069 is about 443.3068157706.

The spelling of 87119069 in words is "eighty-seven million, one hundred nineteen thousand, sixty-nine".