87481400 has 48 divisors (see below), whose sum is σ = 210421800. Its totient is φ = 33783680.

The previous prime is 87481399. The next prime is 87481403. The reversal of 87481400 is 418478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87481403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1742 + ... + 13341.

Almost surely, 2^87481400 is an apocalyptic number.

It is an amenable number.

87481400 is an abundant number, since it is smaller than the sum of its proper divisors (122940400).

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

87481400 is a wasteful number, since it uses less digits than its factorization.

87481400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15128 (or 15119 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 87481400 is about 9353.1492022741. The cubic root of 87481400 is about 443.9205414717.

Adding to 87481400 its reverse (418478), we get a palindrome (87899878).

The spelling of 87481400 in words is "eighty-seven million, four hundred eighty-one thousand, four hundred".