87461443 has 4 divisors (see below), whose sum is σ = 87837048. Its totient is φ = 87085840.

The previous prime is 87461401. The next prime is 87461461. The reversal of 87461443 is 34416478.

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 87461443 - 2⁹ = 87460931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87461483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187453 + ... + 187918.

It is an arithmetic number, because the mean of its divisors is an integer number (21959262).

Almost surely, 2^87461443 is an apocalyptic number.

87461443 is a deficient number, since it is larger than the sum of its proper divisors (375605).

87461443 is a wasteful number, since it uses less digits than its factorization.

87461443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375604.

The product of its digits is 64512, while the sum is 37.

The square root of 87461443 is about 9352.0822815029. The cubic root of 87461443 is about 443.8867819296.

The spelling of 87461443 in words is "eighty-seven million, four hundred sixty-one thousand, four hundred forty-three".