87406943 has 8 divisors (see below), whose sum is σ = 95323200. Its totient is φ = 79661088.

The previous prime is 87406937. The next prime is 87406951. The reversal of 87406943 is 34960478.

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

It is not a de Polignac number, because 87406943 - 2⁸ = 87406687 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87406943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87406903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41528 + ... + 43581.

It is an arithmetic number, because the mean of its divisors is an integer number (11915400).

Almost surely, 2^87406943 is an apocalyptic number.

87406943 is a deficient number, since it is larger than the sum of its proper divisors (7916257).

87406943 is a wasteful number, since it uses less digits than its factorization.

87406943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85201.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 87406943 is about 9349.1680378524. The cubic root of 87406943 is about 443.7945627931.

The spelling of 87406943 in words is "eighty-seven million, four hundred six thousand, nine hundred forty-three".