87232401 has 18 divisors (see below), whose sum is σ = 132988050. Its totient is φ = 55092096.

The previous prime is 87232361. The next prime is 87232417. The reversal of 87232401 is 10423278.

It can be written as a sum of positive squares in only one way, i.e., 66438801 + 20793600 = 8151^2 + 4560^2 .

It is not a de Polignac number, because 87232401 - 2¹³ = 87224209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87232001) 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 17 ways as a sum of consecutive naturals, for example, 10176 + ... + 16673.

It is an arithmetic number, because the mean of its divisors is an integer number (7388225).

Almost surely, 2^87232401 is an apocalyptic number.

It is an amenable number.

87232401 is a deficient number, since it is larger than the sum of its proper divisors (45755649).

87232401 is a wasteful number, since it uses less digits than its factorization.

87232401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26893 (or 26871 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 87232401 is about 9339.8287457533. The cubic root of 87232401 is about 443.4989630562.

Adding to 87232401 its reverse (10423278), we get a palindrome (97655679).

The spelling of 87232401 in words is "eighty-seven million, two hundred thirty-two thousand, four hundred one".