87262859 has 4 divisors (see below), whose sum is σ = 87350016. Its totient is φ = 87175704.

The previous prime is 87262823. The next prime is 87262871. The reversal of 87262859 is 95826278.

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 87262859 - 2¹² = 87258763 is a prime.

It is a super-2 number, since 2×87262859² = 15229613121707762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87262159) 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 3 ways as a sum of consecutive naturals, for example, 42059 + ... + 44084.

It is an arithmetic number, because the mean of its divisors is an integer number (21837504).

Almost surely, 2^87262859 is an apocalyptic number.

87262859 is a deficient number, since it is larger than the sum of its proper divisors (87157).

87262859 is a wasteful number, since it uses less digits than its factorization.

87262859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87156.

The product of its digits is 483840, while the sum is 47.

The square root of 87262859 is about 9341.4591472639. The cubic root of 87262859 is about 443.5505743054.

The spelling of 87262859 in words is "eighty-seven million, two hundred sixty-two thousand, eight hundred fifty-nine".