95587721 has 4 divisors (see below), whose sum is σ = 95690244. Its totient is φ = 95485200.

The previous prime is 95587711. The next prime is 95587759. The reversal of 95587721 is 12778559.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50965321 + 44622400 = 7139^2 + 6680^2 .

It is a cyclic number.

It is not a de Polignac number, because 95587721 - 2²² = 91393417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (95587711) 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, 49850 + ... + 51731.

It is an arithmetic number, because the mean of its divisors is an integer number (23922561).

Almost surely, 2^95587721 is an apocalyptic number.

It is an amenable number.

95587721 is a deficient number, since it is larger than the sum of its proper divisors (102523).

95587721 is a wasteful number, since it uses less digits than its factorization.

95587721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102522.

The product of its digits is 176400, while the sum is 44.

The square root of 95587721 is about 9776.8973094740. The cubic root of 95587721 is about 457.2292819440.

The spelling of 95587721 in words is "ninety-five million, five hundred eighty-seven thousand, seven hundred twenty-one".