87843965 has 16 divisors (see below), whose sum is σ = 116885376. Its totient is φ = 62836800.

The previous prime is 87843941. The next prime is 87843967. The reversal of 87843965 is 56934878.

It is not a de Polignac number, because 87843965 - 2¹⁰ = 87842941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87843967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9737 + ... + 16446.

It is an arithmetic number, because the mean of its divisors is an integer number (7305336).

Almost surely, 2^87843965 is an apocalyptic number.

It is an amenable number.

87843965 is a deficient number, since it is larger than the sum of its proper divisors (29041411).

87843965 is a wasteful number, since it uses less digits than its factorization.

87843965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26260.

The product of its digits is 1451520, while the sum is 50.

The square root of 87843965 is about 9372.5111362964. The cubic root of 87843965 is about 444.5329696000.

The spelling of 87843965 in words is "eighty-seven million, eight hundred forty-three thousand, nine hundred sixty-five".