87263860 has 12 divisors (see below), whose sum is σ = 183254148. Its totient is φ = 34905536.

The previous prime is 87263857. The next prime is 87263861. The reversal of 87263860 is 6836278.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13235044 + 74028816 = 3638^2 + 8604^2 .

It is a super-2 number, since 2×87263860² = 15229962524199200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87263861) 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, 2181577 + ... + 2181616.

It is an arithmetic number, because the mean of its divisors is an integer number (15271179).

Almost surely, 2^87263860 is an apocalyptic number.

It is an amenable number.

87263860 is an abundant number, since it is smaller than the sum of its proper divisors (95990288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87263860 is a wasteful number, since it uses less digits than its factorization.

87263860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4363202 (or 4363200 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 87263860 is about 9341.5127254637. The cubic root of 87263860 is about 443.5522703016.

The spelling of 87263860 in words is "eighty-seven million, two hundred sixty-three thousand, eight hundred sixty".