87265869 has 8 divisors (see below), whose sum is σ = 119499360. Its totient is φ = 56604816.

The previous prime is 87265853. The next prime is 87265889. The reversal of 87265869 is 96856278.

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

It is not a de Polignac number, because 87265869 - 2⁴ = 87265853 is a prime.

It is a super-2 number, since 2×87265869² = 15230663784650322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87265889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392979 + ... + 393200.

It is an arithmetic number, because the mean of its divisors is an integer number (14937420).

Almost surely, 2^87265869 is an apocalyptic number.

It is an amenable number.

87265869 is a deficient number, since it is larger than the sum of its proper divisors (32233491).

87265869 is a wasteful number, since it uses less digits than its factorization.

87265869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786219.

The product of its digits is 1451520, while the sum is 51.

The square root of 87265869 is about 9341.6202556088. The cubic root of 87265869 is about 443.5556741149. Note that the first 3 decimals are identical.

The spelling of 87265869 in words is "eighty-seven million, two hundred sixty-five thousand, eight hundred sixty-nine".