87744943 has 16 divisors (see below), whose sum is σ = 103420800. Its totient is φ = 73392480.

The previous prime is 87744919. The next prime is 87744971. The reversal of 87744943 is 34944778.

It is a cyclic number.

It is not a de Polignac number, because 87744943 - 2¹³ = 87736751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87744893 and 87744902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87744913) 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, 53388 + ... + 55006.

It is an arithmetic number, because the mean of its divisors is an integer number (6463800).

Almost surely, 2^87744943 is an apocalyptic number.

87744943 is a deficient number, since it is larger than the sum of its proper divisors (15675857).

87744943 is a wasteful number, since it uses less digits than its factorization.

87744943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022.

The product of its digits is 677376, while the sum is 46.

The square root of 87744943 is about 9367.2270710173. The cubic root of 87744943 is about 444.3658737196.

The spelling of 87744943 in words is "eighty-seven million, seven hundred forty-four thousand, nine hundred forty-three".