87424771 has 12 divisors (see below), whose sum is σ = 106121232. Its totient is φ = 71676528.

The previous prime is 87424741. The next prime is 87424781. The reversal of 87424771 is 17742478.

It is not a de Polignac number, because 87424771 - 2¹¹ = 87422723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87424741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37660 + ... + 39913.

It is an arithmetic number, because the mean of its divisors is an integer number (8843436).

Almost surely, 2^87424771 is an apocalyptic number.

87424771 is a deficient number, since it is larger than the sum of its proper divisors (18696461).

87424771 is a wasteful number, since it uses less digits than its factorization.

87424771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77610 (or 77603 counting only the distinct ones).

The product of its digits is 87808, while the sum is 40.

The square root of 87424771 is about 9350.1214430616. The cubic root of 87424771 is about 443.8247336672.

It can be divided in two parts, 8742477 and 1, that added together give a palindrome (8742478).

The spelling of 87424771 in words is "eighty-seven million, four hundred twenty-four thousand, seven hundred seventy-one".