87087838 has 16 divisors (see below), whose sum is σ = 138810240. Its totient is φ = 40977888.

The previous prime is 87087829. The next prime is 87087863. The reversal of 87087838 is 83878078.

It is a junction number, because it is equal to n+sod(n) for n = 87087791 and 87087800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5395 + ... + 14257.

It is an arithmetic number, because the mean of its divisors is an integer number (8675640).

Almost surely, 2^87087838 is an apocalyptic number.

87087838 is a deficient number, since it is larger than the sum of its proper divisors (51722402).

87087838 is an equidigital number, since it uses as much as digits as its factorization.

87087838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8916 (or 8882 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 49.

The square root of 87087838 is about 9332.0864762388. The cubic root of 87087838 is about 443.2538362868.

The spelling of 87087838 in words is "eighty-seven million, eighty-seven thousand, eight hundred thirty-eight".