87422481 has 12 divisors (see below), whose sum is σ = 126374352. Its totient is φ = 58236696.

The previous prime is 87422479. The next prime is 87422519. The reversal of 87422481 is 18422478.

It is not a de Polignac number, because 87422481 - 2¹ = 87422479 is a prime.

It is a super-2 number, since 2×87422481² = 15285380368390722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87422441) 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, 12090 + ... + 17916.

It is an arithmetic number, because the mean of its divisors is an integer number (10531196).

Almost surely, 2^87422481 is an apocalyptic number.

It is an amenable number.

87422481 is a deficient number, since it is larger than the sum of its proper divisors (38951871).

87422481 is a wasteful number, since it uses less digits than its factorization.

87422481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7500 (or 7497 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 87422481 is about 9349.9989839572. The cubic root of 87422481 is about 443.8208584592.

The spelling of 87422481 in words is "eighty-seven million, four hundred twenty-two thousand, four hundred eighty-one".