87116941 has 2 divisors, whose sum is σ = 87116942. Its totient is φ = 87116940.

The previous prime is 87116933. The next prime is 87116947. The reversal of 87116941 is 14961178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49294441 + 37822500 = 7021^2 + 6150^2 .

It is a cyclic number.

It is not a de Polignac number, because 87116941 - 2³ = 87116933 is a prime.

It is a super-2 number, since 2×87116941² = 15178722818394962, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87116941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87116947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43558470 + 43558471.

It is an arithmetic number, because the mean of its divisors is an integer number (43558471).

Almost surely, 2^87116941 is an apocalyptic number.

It is an amenable number.

87116941 is a deficient number, since it is larger than the sum of its proper divisors (1).

87116941 is an equidigital number, since it uses as much as digits as its factorization.

87116941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 37.

The square root of 87116941 is about 9333.6456435843. The cubic root of 87116941 is about 443.3032062869.

The spelling of 87116941 in words is "eighty-seven million, one hundred sixteen thousand, nine hundred forty-one".