87201577 has 8 divisors (see below), whose sum is σ = 88737120. Its totient is φ = 85678560.

The previous prime is 87201559. The next prime is 87201607. The reversal of 87201577 is 77510278.

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 87201577 - 2¹¹ = 87199529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87201557) 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, 11502 + ... + 17512.

It is an arithmetic number, because the mean of its divisors is an integer number (11092140).

Almost surely, 2^87201577 is an apocalyptic number.

It is an amenable number.

87201577 is a deficient number, since it is larger than the sum of its proper divisors (1535543).

87201577 is a wasteful number, since it uses less digits than its factorization.

87201577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6263.

The product of its (nonzero) digits is 27440, while the sum is 37.

The square root of 87201577 is about 9338.1784626339. The cubic root of 87201577 is about 443.4467193854.

It can be divided in two parts, 87201 and 577, that added together give a palindrome (87778).

The spelling of 87201577 in words is "eighty-seven million, two hundred one thousand, five hundred seventy-seven".