87065416 has 8 divisors (see below), whose sum is σ = 163247670. Its totient is φ = 43532704.

The previous prime is 87065413. The next prime is 87065431. The reversal of 87065416 is 61456078.

It can be written as a sum of positive squares in only one way, i.e., 76632516 + 10432900 = 8754^2 + 3230^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (87065413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5441581 + ... + 5441596.

Almost surely, 2^87065416 is an apocalyptic number.

It is an amenable number.

87065416 is a deficient number, since it is larger than the sum of its proper divisors (76182254).

87065416 is a wasteful number, since it uses less digits than its factorization.

87065416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10883183 (or 10883179 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 87065416 is about 9330.8850598429. The cubic root of 87065416 is about 443.2157923578.

The spelling of 87065416 in words is "eighty-seven million, sixty-five thousand, four hundred sixteen".