87943541 has 4 divisors (see below), whose sum is σ = 100506912. Its totient is φ = 75380172.

The previous prime is 87943529. The next prime is 87943549. The reversal of 87943541 is 14534978.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 87943541 - 2⁶ = 87943477 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 (87943549) 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 3 ways as a sum of consecutive naturals, for example, 6281675 + ... + 6281688.

It is an arithmetic number, because the mean of its divisors is an integer number (25126728).

Almost surely, 2^87943541 is an apocalyptic number.

It is an amenable number.

87943541 is a deficient number, since it is larger than the sum of its proper divisors (12563371).

87943541 is a wasteful number, since it uses less digits than its factorization.

87943541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12563370.

The product of its digits is 120960, while the sum is 41.

The square root of 87943541 is about 9377.8217620085. The cubic root of 87943541 is about 444.7008737544.

The spelling of 87943541 in words is "eighty-seven million, nine hundred forty-three thousand, five hundred forty-one".