87260287 has 8 divisors (see below), whose sum is σ = 89469776. Its totient is φ = 85059072.

The previous prime is 87260267. The next prime is 87260309. The reversal of 87260287 is 78206278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87260287 - 2¹⁵ = 87227519 is a prime.

It is a super-2 number, since 2×87260287² = 15228715374644738, 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 (87260227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23053 + ... + 26569.

It is an arithmetic number, because the mean of its divisors is an integer number (11183722).

Almost surely, 2^87260287 is an apocalyptic number.

87260287 is a deficient number, since it is larger than the sum of its proper divisors (2209489).

87260287 is a wasteful number, since it uses less digits than its factorization.

87260287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4137.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 87260287 is about 9341.3214803902. The cubic root of 87260287 is about 443.5462165015.

The spelling of 87260287 in words is "eighty-seven million, two hundred sixty thousand, two hundred eighty-seven".