9740857 has 10 divisors (see below), whose sum is σ = 11366458. Its totient is φ = 8347248.

The previous prime is 9740827. The next prime is 9740867. The reversal of 9740857 is 7580479.

It can be written as a sum of positive squares in only one way, i.e., 8357881 + 1382976 = 2891^2 + 1176^2 .

It is not a de Polignac number, because 9740857 - 2⁷ = 9740729 is a prime.

It is a Duffinian number.

9740857 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9740827) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 373 + ... + 4429.

Almost surely, 2^9740857 is an apocalyptic number.

It is an amenable number.

9740857 is a deficient number, since it is larger than the sum of its proper divisors (1625601).

9740857 is an frugal number, since it uses more digits than its factorization.

9740857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4085 (or 4064 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 9740857 is about 3121.0346041017. The cubic root of 9740857 is about 213.5661355624.

The spelling of 9740857 in words is "nine million, seven hundred forty thousand, eight hundred fifty-seven".