87341789 has 2 divisors, whose sum is σ = 87341790. Its totient is φ = 87341788.

The previous prime is 87341783. The next prime is 87341791. The reversal of 87341789 is 98714378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70392100 + 16949689 = 8390^2 + 4117^2 .

It is a cyclic number.

It is not a de Polignac number, because 87341789 - 2⁴ = 87341773 is a prime.

Together with 87341791, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87341783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43670894 + 43670895.

It is an arithmetic number, because the mean of its divisors is an integer number (43670895).

Almost surely, 2^87341789 is an apocalyptic number.

It is an amenable number.

87341789 is a deficient number, since it is larger than the sum of its proper divisors (1).

87341789 is an equidigital number, since it uses as much as digits as its factorization.

87341789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 47.

The square root of 87341789 is about 9345.6829070967. The cubic root of 87341789 is about 443.6842657639.

The spelling of 87341789 in words is "eighty-seven million, three hundred forty-one thousand, seven hundred eighty-nine".