87438036 has 24 divisors (see below), whose sum is σ = 233168320. Its totient is φ = 24982272.

The previous prime is 87438007. The next prime is 87438037. The reversal of 87438036 is 63083478.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 87437985 and 87438003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87438037) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 520381 + ... + 520548.

Almost surely, 2^87438036 is an apocalyptic number.

It is an amenable number.

87438036 is an abundant number, since it is smaller than the sum of its proper divisors (145730284).

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

87438036 is a wasteful number, since it uses less digits than its factorization.

87438036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040943 (or 1040941 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 87438036 is about 9350.8307652315. The cubic root of 87438036 is about 443.8471797744.

The spelling of 87438036 in words is "eighty-seven million, four hundred thirty-eight thousand, thirty-six".