87245452 has 48 divisors (see below), whose sum is σ = 179891712. Its totient is φ = 36247680.

The previous prime is 87245449. The next prime is 87245461. The reversal of 87245452 is 25454278.

It is a happy number.

It is a super-2 number, since 2×87245452² = 15223537789368608, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280377 + ... + 280687.

It is an arithmetic number, because the mean of its divisors is an integer number (3747744).

Almost surely, 2^87245452 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 87245452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89945856).

87245452 is an abundant number, since it is smaller than the sum of its proper divisors (92646260).

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

87245452 is a wasteful number, since it uses less digits than its factorization.

87245452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598 (or 596 counting only the distinct ones).

The product of its digits is 89600, while the sum is 37.

The square root of 87245452 is about 9340.5273941036. The cubic root of 87245452 is about 443.5210795185.

The spelling of 87245452 in words is "eighty-seven million, two hundred forty-five thousand, four hundred fifty-two".