87260712 has 128 divisors (see below), whose sum is σ = 283944960. Its totient is φ = 21669120.

The previous prime is 87260707. The next prime is 87260729. The reversal of 87260712 is 21706278.

It is a super-2 number, since 2×87260712² = 15228863717493888, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41478 + ... + 43530.

It is an arithmetic number, because the mean of its divisors is an integer number (2218320).

Almost surely, 2^87260712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87260712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141972480).

87260712 is an abundant number, since it is smaller than the sum of its proper divisors (196684248).

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

87260712 is a wasteful number, since it uses less digits than its factorization.

87260712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103 (or 2099 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 87260712 is about 9341.3442287500. The cubic root of 87260712 is about 443.5469365955.

The spelling of 87260712 in words is "eighty-seven million, two hundred sixty thousand, seven hundred twelve".