87917436 has 18 divisors (see below), whose sum is σ = 222235832. Its totient is φ = 29305800.

The previous prime is 87917411. The next prime is 87917443. The reversal of 87917436 is 63471978.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 87917391 and 87917400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1221040 + ... + 1221111.

Almost surely, 2^87917436 is an apocalyptic number.

It is an amenable number.

87917436 is an abundant number, since it is smaller than the sum of its proper divisors (134318396).

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

87917436 is a wasteful number, since it uses less digits than its factorization.

87917436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442161 (or 2442156 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 87917436 is about 9376.4298109675. The cubic root of 87917436 is about 444.6568680016.

The spelling of 87917436 in words is "eighty-seven million, nine hundred seventeen thousand, four hundred thirty-six".