9557945 has 4 divisors (see below), whose sum is σ = 11469540. Its totient is φ = 7646352.

The previous prime is 9557923. The next prime is 9557957. The reversal of 9557945 is 5497559.

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 3888784 + 5669161 = 1972^2 + 2381^2 .

It is a cyclic number.

It is not a de Polignac number, because 9557945 - 2⁶ = 9557881 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9557896 and 9557905.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955790 + ... + 955799.

It is an arithmetic number, because the mean of its divisors is an integer number (2867385).

Almost surely, 2^9557945 is an apocalyptic number.

It is an amenable number.

9557945 is a deficient number, since it is larger than the sum of its proper divisors (1911595).

9557945 is a wasteful number, since it uses less digits than its factorization.

9557945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911594.

The product of its digits is 283500, while the sum is 44.

The square root of 9557945 is about 3091.5926316383. The cubic root of 9557945 is about 212.2209115877.

The spelling of 9557945 in words is "nine million, five hundred fifty-seven thousand, nine hundred forty-five".