87800244 has 24 divisors (see below), whose sum is σ = 234134208. Its totient is φ = 25085760.

The previous prime is 87800243. The next prime is 87800267. The reversal of 87800244 is 44200878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87800243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522537 + ... + 522704.

It is an arithmetic number, because the mean of its divisors is an integer number (9755592).

Almost surely, 2^87800244 is an apocalyptic number.

87800244 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

87800244 is an abundant number, since it is smaller than the sum of its proper divisors (146333964).

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

87800244 is a wasteful number, since it uses less digits than its factorization.

87800244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045255 (or 1045253 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 87800244 is about 9370.1784401366. The cubic root of 87800244 is about 444.4592075559.

The spelling of 87800244 in words is "eighty-seven million, eight hundred thousand, two hundred forty-four".