87263285 has 4 divisors (see below), whose sum is σ = 104715948. Its totient is φ = 69810624.

The previous prime is 87263263. The next prime is 87263287. The reversal of 87263285 is 58236278.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53611684 + 33651601 = 7322^2 + 5801^2 .

It is a cyclic number.

It is not a de Polignac number, because 87263285 - 2¹⁰ = 87262261 is a prime.

It is a super-2 number, since 2×87263285² = 15229761817982450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87263287) 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, 8726324 + ... + 8726333.

It is an arithmetic number, because the mean of its divisors is an integer number (26178987).

Almost surely, 2^87263285 is an apocalyptic number.

It is an amenable number.

87263285 is a deficient number, since it is larger than the sum of its proper divisors (17452663).

87263285 is a wasteful number, since it uses less digits than its factorization.

87263285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17452662.

The product of its digits is 161280, while the sum is 41.

The square root of 87263285 is about 9341.4819488130. The cubic root of 87263285 is about 443.5512960796.

The spelling of 87263285 in words is "eighty-seven million, two hundred sixty-three thousand, two hundred eighty-five".