87262559 has 4 divisors (see below), whose sum is σ = 87368904. Its totient is φ = 87156216.

The previous prime is 87262543. The next prime is 87262579. The reversal of 87262559 is 95526278.

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

It is a cyclic number.

It is not a de Polignac number, because 87262559 - 2⁴ = 87262543 is a prime.

It is a super-2 number, since 2×87262559² = 15229508406456962, 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 (87262579) 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, 51932 + ... + 53585.

It is an arithmetic number, because the mean of its divisors is an integer number (21842226).

Almost surely, 2^87262559 is an apocalyptic number.

87262559 is a deficient number, since it is larger than the sum of its proper divisors (106345).

87262559 is a wasteful number, since it uses less digits than its factorization.

87262559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106344.

The product of its digits is 302400, while the sum is 44.

The square root of 87262559 is about 9341.4430898015. The cubic root of 87262559 is about 443.5500660123.

The spelling of 87262559 in words is "eighty-seven million, two hundred sixty-two thousand, five hundred fifty-nine".