87533743 has 4 divisors (see below), whose sum is σ = 95491368. Its totient is φ = 79576120.

The previous prime is 87533717. The next prime is 87533753. The reversal of 87533743 is 34733578.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87533743 - 2¹³ = 87525551 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87533696 and 87533705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87533753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3978796 + ... + 3978817.

It is an arithmetic number, because the mean of its divisors is an integer number (23872842).

Almost surely, 2^87533743 is an apocalyptic number.

87533743 is a deficient number, since it is larger than the sum of its proper divisors (7957625).

87533743 is a wasteful number, since it uses less digits than its factorization.

87533743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7957624.

The product of its digits is 211680, while the sum is 40.

The square root of 87533743 is about 9355.9469322993. The cubic root of 87533743 is about 444.0090612414.

The spelling of 87533743 in words is "eighty-seven million, five hundred thirty-three thousand, seven hundred forty-three".