87010613 has 2 divisors, whose sum is σ = 87010614. Its totient is φ = 87010612.

The previous prime is 87010603. The next prime is 87010619. The reversal of 87010613 is 31601078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58033924 + 28976689 = 7618^2 + 5383^2 .

It is a cyclic number.

It is not a de Polignac number, because 87010613 - 2⁶ = 87010549 is a prime.

It is a super-3 number, since 3×87010613³ (a number of 25 digits) contains 333 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 (87010619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43505306 + 43505307.

It is an arithmetic number, because the mean of its divisors is an integer number (43505307).

Almost surely, 2^87010613 is an apocalyptic number.

It is an amenable number.

87010613 is a deficient number, since it is larger than the sum of its proper divisors (1).

87010613 is an equidigital number, since it uses as much as digits as its factorization.

87010613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 87010613 is about 9327.9479522562. The cubic root of 87010613 is about 443.1227793327.

The spelling of 87010613 in words is "eighty-seven million, ten thousand, six hundred thirteen".