87971036 has 24 divisors (see below), whose sum is σ = 161194320. Its totient is φ = 41952512.

The previous prime is 87971033. The next prime is 87971041. The reversal of 87971036 is 63017978.

It is a junction number, because it is equal to n+sod(n) for n = 87970984 and 87971002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87971033) 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, 5060 + ... + 14196.

It is an arithmetic number, because the mean of its divisors is an integer number (6716430).

Almost surely, 2^87971036 is an apocalyptic number.

It is an amenable number.

87971036 is a deficient number, since it is larger than the sum of its proper divisors (73223284).

87971036 is a wasteful number, since it uses less digits than its factorization.

87971036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9253 (or 9251 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 87971036 is about 9379.2876062098. The cubic root of 87971036 is about 444.7472132443.

The spelling of 87971036 in words is "eighty-seven million, nine hundred seventy-one thousand, thirty-six".