87231001 has 16 divisors (see below), whose sum is σ = 103457088. Its totient is φ = 72504000.

The previous prime is 87230999. The next prime is 87231017. The reversal of 87231001 is 10013278.

It is a cyclic number.

It is not a de Polignac number, because 87231001 - 2¹ = 87230999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87231031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12451 + ... + 18151.

It is an arithmetic number, because the mean of its divisors is an integer number (6466068).

Almost surely, 2^87231001 is an apocalyptic number.

It is an amenable number.

87231001 is a deficient number, since it is larger than the sum of its proper divisors (16226087).

87231001 is a wasteful number, since it uses less digits than its factorization.

87231001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5832.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 87231001 is about 9339.7537976116. The cubic root of 87231001 is about 443.4965904597.

Adding to 87231001 its reverse (10013278), we get a palindrome (97244279).

The spelling of 87231001 in words is "eighty-seven million, two hundred thirty-one thousand, one".