87381388 has 12 divisors (see below), whose sum is σ = 153009472. Its totient is φ = 43664400.

The previous prime is 87381353. The next prime is 87381401. The reversal of 87381388 is 88318378.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2206 + ... + 13402.

Almost surely, 2^87381388 is an apocalyptic number.

It is an amenable number.

87381388 is a deficient number, since it is larger than the sum of its proper divisors (65628084).

87381388 is a wasteful number, since it uses less digits than its factorization.

87381388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13152 (or 13150 counting only the distinct ones).

The product of its digits is 258048, while the sum is 46.

The square root of 87381388 is about 9347.8012387941. The cubic root of 87381388 is about 443.7513081228.

The spelling of 87381388 in words is "eighty-seven million, three hundred eighty-one thousand, three hundred eighty-eight".