87047910 has 96 divisors (see below), whose sum is σ = 235243008. Its totient is φ = 22317120.

The previous prime is 87047903. The next prime is 87047921. The reversal of 87047910 is 1974078.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 321075 + ... + 321345.

It is an arithmetic number, because the mean of its divisors is an integer number (2450448).

Almost surely, 2^87047910 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87047910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117621504).

87047910 is an abundant number, since it is smaller than the sum of its proper divisors (148195098).

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

87047910 is a wasteful number, since it uses less digits than its factorization.

87047910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 87047910 is about 9329.9469451868. The cubic root of 87047910 is about 443.1860849795.

It can be divided in two parts, 870479 and 10, that added together give a square (870489 = 933²).

The spelling of 87047910 in words is "eighty-seven million, forty-seven thousand, nine hundred ten".