87546443 has 4 divisors (see below), whose sum is σ = 87566568. Its totient is φ = 87526320.

The previous prime is 87546427. The next prime is 87546451. The reversal of 87546443 is 34464578.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34464578 = 2 ⋅17232289.

It is a cyclic number.

It is not a de Polignac number, because 87546443 - 2⁴ = 87546427 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 87546443.

It is not an unprimeable number, because it can be changed into a prime (87546463) 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, 521 + ... + 13242.

It is an arithmetic number, because the mean of its divisors is an integer number (21891642).

Almost surely, 2^87546443 is an apocalyptic number.

87546443 is a deficient number, since it is larger than the sum of its proper divisors (20125).

87546443 is a wasteful number, since it uses less digits than its factorization.

87546443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20124.

The product of its digits is 322560, while the sum is 41.

The square root of 87546443 is about 9356.6256203826. The cubic root of 87546443 is about 444.0305335034.

The spelling of 87546443 in words is "eighty-seven million, five hundred forty-six thousand, four hundred forty-three".