87205293 has 24 divisors (see below), whose sum is σ = 144208896. Its totient is φ = 49744800.

The previous prime is 87205267. The next prime is 87205301. The reversal of 87205293 is 39250278.

It is a happy number.

It is not a de Polignac number, because 87205293 - 2¹⁰ = 87204269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87005293) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58548 + ... + 60018.

It is an arithmetic number, because the mean of its divisors is an integer number (6008704).

Almost surely, 2^87205293 is an apocalyptic number.

It is an amenable number.

87205293 is a deficient number, since it is larger than the sum of its proper divisors (57003603).

87205293 is a wasteful number, since it uses less digits than its factorization.

87205293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425 (or 2422 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 87205293 is about 9338.3774286543. The cubic root of 87205293 is about 443.4530182952.

The spelling of 87205293 in words is "eighty-seven million, two hundred five thousand, two hundred ninety-three".