87630093 has 10 divisors (see below), whose sum is σ = 130904334. Its totient is φ = 58420008.

The previous prime is 87630073. The next prime is 87630113. The reversal of 87630093 is 39003678.

It is an interprime number because it is at equal distance from previous prime (87630073) and next prime (87630113).

It can be written as a sum of positive squares in only one way, i.e., 80676324 + 6953769 = 8982^2 + 2637^2 .

It is not a de Polignac number, because 87630093 - 2¹² = 87625997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87630073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 540846 + ... + 541007.

Almost surely, 2^87630093 is an apocalyptic number.

It is an amenable number.

87630093 is a deficient number, since it is larger than the sum of its proper divisors (43274241).

87630093 is a wasteful number, since it uses less digits than its factorization.

87630093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081865 (or 1081856 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 87630093 is about 9361.0946475292. The cubic root of 87630093 is about 444.1719111506.

The spelling of 87630093 in words is "eighty-seven million, six hundred thirty thousand, ninety-three".