87216001 has 8 divisors (see below), whose sum is σ = 93053664. Its totient is φ = 81456960.

The previous prime is 87215957. The next prime is 87216011. The reversal of 87216001 is 10061278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87216001 - 2⁹ = 87215489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87216011) 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 7 ways as a sum of consecutive naturals, for example, 17355 + ... + 21808.

It is an arithmetic number, because the mean of its divisors is an integer number (11631708).

Almost surely, 2^87216001 is an apocalyptic number.

It is an amenable number.

87216001 is a deficient number, since it is larger than the sum of its proper divisors (5837663).

87216001 is a wasteful number, since it uses less digits than its factorization.

87216001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39311.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 87216001 is about 9338.9507440611. The cubic root of 87216001 is about 443.4711681896.

Adding to 87216001 its reverse (10061278), we get a palindrome (97277279).

The spelling of 87216001 in words is "eighty-seven million, two hundred sixteen thousand, one".