87695149 has 2 divisors, whose sum is σ = 87695150. Its totient is φ = 87695148.

The previous prime is 87695117. The next prime is 87695173. The reversal of 87695149 is 94159678.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61121124 + 26574025 = 7818^2 + 5155^2 .

It is a cyclic number.

It is not a de Polignac number, because 87695149 - 2⁵ = 87695117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87605149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43847574 + 43847575.

It is an arithmetic number, because the mean of its divisors is an integer number (43847575).

Almost surely, 2^87695149 is an apocalyptic number.

It is an amenable number.

87695149 is a deficient number, since it is larger than the sum of its proper divisors (1).

87695149 is an equidigital number, since it uses as much as digits as its factorization.

87695149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 49.

The square root of 87695149 is about 9364.5688101482. The cubic root of 87695149 is about 444.2818007219.

The spelling of 87695149 in words is "eighty-seven million, six hundred ninety-five thousand, one hundred forty-nine".