9571601 has 4 divisors (see below), whose sum is σ = 10307892. Its totient is φ = 8835312.

The previous prime is 9571589. The next prime is 9571607. The reversal of 9571601 is 1061759.

It is a happy number.

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 3441025 + 6130576 = 1855^2 + 2476^2 .

It is a cyclic number.

It is not a de Polignac number, because 9571601 - 2¹⁰ = 9570577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9571607) 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, 368126 + ... + 368151.

It is an arithmetic number, because the mean of its divisors is an integer number (2576973).

Almost surely, 2^9571601 is an apocalyptic number.

It is an amenable number.

9571601 is a deficient number, since it is larger than the sum of its proper divisors (736291).

9571601 is a wasteful number, since it uses less digits than its factorization.

9571601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736290.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 9571601 is about 3093.8004137307. The cubic root of 9571601 is about 212.3219343368.

The spelling of 9571601 in words is "nine million, five hundred seventy-one thousand, six hundred one".