87205201 has 4 divisors (see below), whose sum is σ = 90018304. Its totient is φ = 84392100.

The previous prime is 87205187. The next prime is 87205211. The reversal of 87205201 is 10250278.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10250278 = 2 ⋅5125139.

It is a cyclic number.

It is not a de Polignac number, because 87205201 - 2⁵ = 87205169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87205211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1406505 + ... + 1406566.

It is an arithmetic number, because the mean of its divisors is an integer number (22504576).

Almost surely, 2^87205201 is an apocalyptic number.

It is an amenable number.

87205201 is a deficient number, since it is larger than the sum of its proper divisors (2813103).

87205201 is a wasteful number, since it uses less digits than its factorization.

87205201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813102.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 87205201 is about 9338.3725027437. The cubic root of 87205201 is about 443.4528623502.

Adding to 87205201 its reverse (10250278), we get a palindrome (97455479).

The spelling of 87205201 in words is "eighty-seven million, two hundred five thousand, two hundred one".