87345199 has 2 divisors, whose sum is σ = 87345200. Its totient is φ = 87345198.

The previous prime is 87345173. The next prime is 87345217. The reversal of 87345199 is 99154378.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87345199 - 2⁹ = 87344687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87345149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43672599 + 43672600.

It is an arithmetic number, because the mean of its divisors is an integer number (43672600).

Almost surely, 2^87345199 is an apocalyptic number.

87345199 is a deficient number, since it is larger than the sum of its proper divisors (1).

87345199 is an equidigital number, since it uses as much as digits as its factorization.

87345199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 46.

The square root of 87345199 is about 9345.8653424924. The cubic root of 87345199 is about 443.6900397990.

The spelling of 87345199 in words is "eighty-seven million, three hundred forty-five thousand, one hundred ninety-nine".