87000001 has 4 divisors (see below), whose sum is σ = 94909104. Its totient is φ = 79090900.

The previous prime is 86999989. The next prime is 87000037. The reversal of 87000001 is 10000078.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87000001 - 2⁷ = 86999873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87000301) 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 3 ways as a sum of consecutive naturals, for example, 3954535 + ... + 3954556.

It is an arithmetic number, because the mean of its divisors is an integer number (23727276).

Almost surely, 2^87000001 is an apocalyptic number.

It is an amenable number.

87000001 is a deficient number, since it is larger than the sum of its proper divisors (7909103).

87000001 is a wasteful number, since it uses less digits than its factorization.

87000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7909102.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 87000001 is about 9327.3791066944. The cubic root of 87000001 is about 443.1047638671.

Adding to 87000001 its reverse (10000078), we get a palindrome (97000079).

The spelling of 87000001 in words is "eighty-seven million, one", and thus it is an aban number and an uban number.