87697943 has 8 divisors (see below), whose sum is σ = 91108800. Its totient is φ = 84312928.

The previous prime is 87697921. The next prime is 87697969. The reversal of 87697943 is 34979678.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87697943 - 2¹² = 87693847 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 (87697913) 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, 605 + ... + 13257.

It is an arithmetic number, because the mean of its divisors is an integer number (11388600).

Almost surely, 2^87697943 is an apocalyptic number.

87697943 is a deficient number, since it is larger than the sum of its proper divisors (3410857).

87697943 is a wasteful number, since it uses less digits than its factorization.

87697943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12921.

The product of its digits is 2286144, while the sum is 53.

The square root of 87697943 is about 9364.7179882792. The cubic root of 87697943 is about 444.2865189994.

The spelling of 87697943 in words is "eighty-seven million, six hundred ninety-seven thousand, nine hundred forty-three".