87993130 has 16 divisors (see below), whose sum is σ = 158505984. Its totient is φ = 35170960.

The previous prime is 87993121. The next prime is 87993133. The reversal of 87993130 is 3139978.

It is not an unprimeable number, because it can be changed into a prime (87993133) 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, 16359 + ... + 21061.

It is an arithmetic number, because the mean of its divisors is an integer number (9906624).

Almost surely, 2^87993130 is an apocalyptic number.

87993130 is a deficient number, since it is larger than the sum of its proper divisors (70512854).

87993130 is a wasteful number, since it uses less digits than its factorization.

87993130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6581.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 87993130 is about 9380.4653402696. The cubic root of 87993130 is about 444.7844430072.

The spelling of 87993130 in words is "eighty-seven million, nine hundred ninety-three thousand, one hundred thirty".