87072900 has 36 divisors (see below), whose sum is σ = 251931792. Its totient is φ = 23219360.

The previous prime is 87072857. The next prime is 87072901. The reversal of 87072900 is 927078.

It is not an unprimeable number, because it can be changed into a prime (87072901) 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, 144822 + ... + 145421.

Almost surely, 2^87072900 is an apocalyptic number.

It is an amenable number.

87072900 is an abundant number, since it is smaller than the sum of its proper divisors (164858892).

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

87072900 is a wasteful number, since it uses less digits than its factorization.

87072900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290260 (or 290253 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 87072900 is about 9331.2860849939. The cubic root of 87072900 is about 443.2284913609.

Adding to 87072900 its reverse (927078), we get a palindrome (87999978).

The spelling of 87072900 in words is "eighty-seven million, seventy-two thousand, nine hundred".