87543201 has 4 divisors (see below), whose sum is σ = 116724272. Its totient is φ = 58362132.

The previous prime is 87543193. The next prime is 87543223. The reversal of 87543201 is 10234578.

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 not a de Polignac number, because 87543201 - 2³ = 87543193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87543271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14590531 + ... + 14590536.

It is an arithmetic number, because the mean of its divisors is an integer number (29181068).

Almost surely, 2^87543201 is an apocalyptic number.

It is an amenable number.

87543201 is a deficient number, since it is larger than the sum of its proper divisors (29181071).

87543201 is a wasteful number, since it uses less digits than its factorization.

87543201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29181070.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 87543201 is about 9356.4523725609. The cubic root of 87543201 is about 444.0250523564.

Adding to 87543201 its reverse (10234578), we get a palindrome (97777779).

The spelling of 87543201 in words is "eighty-seven million, five hundred forty-three thousand, two hundred one".