87342917 has 2 divisors, whose sum is σ = 87342918. Its totient is φ = 87342916.

The previous prime is 87342907. The next prime is 87342919. The reversal of 87342917 is 71924378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71334916 + 16008001 = 8446^2 + 4001^2 .

It is a cyclic number.

It is not a de Polignac number, because 87342917 - 2⁴ = 87342901 is a prime.

Together with 87342919, 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 (87342919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43671458 + 43671459.

It is an arithmetic number, because the mean of its divisors is an integer number (43671459).

Almost surely, 2^87342917 is an apocalyptic number.

It is an amenable number.

87342917 is a deficient number, since it is larger than the sum of its proper divisors (1).

87342917 is an equidigital number, since it uses as much as digits as its factorization.

87342917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 41.

The square root of 87342917 is about 9345.7432556218. The cubic root of 87342917 is about 443.6861757840.

The spelling of 87342917 in words is "eighty-seven million, three hundred forty-two thousand, nine hundred seventeen".