87005207 has 2 divisors, whose sum is σ = 87005208. Its totient is φ = 87005206.

The previous prime is 87005203. The next prime is 87005227. The reversal of 87005207 is 70250078.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87005207 - 2² = 87005203 is a prime.

It is a super-2 number, since 2×87005207² = 15139812090225698, 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 87005207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87005203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43502603 + 43502604.

It is an arithmetic number, because the mean of its divisors is an integer number (43502604).

Almost surely, 2^87005207 is an apocalyptic number.

87005207 is a deficient number, since it is larger than the sum of its proper divisors (1).

87005207 is an equidigital number, since it uses as much as digits as its factorization.

87005207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 87005207 is about 9327.6581734109. The cubic root of 87005207 is about 443.1136020179.

The spelling of 87005207 in words is "eighty-seven million, five thousand, two hundred seven".