87237212413 has 8 divisors (see below), whose sum is σ = 93952013400. Its totient is φ = 80523018048.

The previous prime is 87237212399. The next prime is 87237212429. The reversal of 87237212413 is 31421273278.

It can be written as a sum of positive squares in 4 ways, for example, as 3980726649 + 83256485764 = 63093^2 + 288542^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87237212413 is a prime.

It is a super-2 number, since 2×87237212413² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87237212453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172743 + ... + 452011.

It is an arithmetic number, because the mean of its divisors is an integer number (11744001675).

Almost surely, 2^87237212413 is an apocalyptic number.

It is an amenable number.

87237212413 is a deficient number, since it is larger than the sum of its proper divisors (6714800987).

87237212413 is a wasteful number, since it uses less digits than its factorization.

87237212413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303311.

The product of its digits is 112896, while the sum is 40.

The spelling of 87237212413 in words is "eighty-seven billion, two hundred thirty-seven million, two hundred twelve thousand, four hundred thirteen".