87207265 has 8 divisors (see below), whose sum is σ = 104710248. Its totient is φ = 69724800.

The previous prime is 87207259. The next prime is 87207269. The reversal of 87207265 is 56270278.

It can be written as a sum of positive squares in 4 ways, for example, as 16378209 + 70829056 = 4047^2 + 8416^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-87207265 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87207269) 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, 6715 + ... + 14815.

It is an arithmetic number, because the mean of its divisors is an integer number (13088781).

Almost surely, 2^87207265 is an apocalyptic number.

It is an amenable number.

87207265 is a deficient number, since it is larger than the sum of its proper divisors (17502983).

87207265 is a wasteful number, since it uses less digits than its factorization.

87207265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10259.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 87207265 is about 9338.4830138519. The cubic root of 87207265 is about 443.4563609163.

The spelling of 87207265 in words is "eighty-seven million, two hundred seven thousand, two hundred sixty-five".