87415400 has 24 divisors (see below), whose sum is σ = 203241270. Its totient is φ = 34966080.

The previous prime is 87415373. The next prime is 87415421. The reversal of 87415400 is 451478.

It can be written as a sum of positive squares in 3 ways, for example, as 78039556 + 9375844 = 8834^2 + 3062^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 218339 + ... + 218738.

Almost surely, 2^87415400 is an apocalyptic number.

It is an amenable number.

87415400 is an abundant number, since it is smaller than the sum of its proper divisors (115825870).

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

87415400 is a wasteful number, since it uses less digits than its factorization.

87415400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437093 (or 437084 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 87415400 is about 9349.6203131464. The cubic root of 87415400 is about 443.8088753464.

Adding to 87415400 its reverse (451478), we get a palindrome (87866878).

It can be divided in two parts, 8741 and 5400, that added together give a palindrome (14141).

The spelling of 87415400 in words is "eighty-seven million, four hundred fifteen thousand, four hundred".