87860472 has 64 divisors (see below), whose sum is σ = 252564480. Its totient is φ = 24949632.

The previous prime is 87860453. The next prime is 87860473. The reversal of 87860472 is 27406878.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87860473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27553 + ... + 30575.

It is an arithmetic number, because the mean of its divisors is an integer number (3946320).

Almost surely, 2^87860472 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 87860472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126282240).

87860472 is an abundant number, since it is smaller than the sum of its proper divisors (164704008).

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

87860472 is a wasteful number, since it uses less digits than its factorization.

87860472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3212 (or 3208 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 87860472 is about 9373.3917020468. The cubic root of 87860472 is about 444.5608123253.

The spelling of 87860472 in words is "eighty-seven million, eight hundred sixty thousand, four hundred seventy-two".