87023400 has 96 divisors (see below), whose sum is σ = 276128160. Its totient is φ = 22659840.

The previous prime is 87023381. The next prime is 87023411. The reversal of 87023400 is 432078.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24114 + ... + 27486.

It is an arithmetic number, because the mean of its divisors is an integer number (2876335).

Almost surely, 2^87023400 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 87023400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138064080).

87023400 is an abundant number, since it is smaller than the sum of its proper divisors (189104760).

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

87023400 is a wasteful number, since it uses less digits than its factorization.

87023400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3435 (or 3426 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 87023400 is about 9328.6333404202. The cubic root of 87023400 is about 443.1444852420.

Adding to 87023400 its reverse (432078), we get a palindrome (87455478).

The spelling of 87023400 in words is "eighty-seven million, twenty-three thousand, four hundred".