9940757 has 2 divisors, whose sum is σ = 9940758. Its totient is φ = 9940756.

The previous prime is 9940751. The next prime is 9940759. The reversal of 9940757 is 7570499.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7612081 + 2328676 = 2759^2 + 1526^2 .

It is a cyclic number.

It is not a de Polignac number, because 9940757 - 2⁴ = 9940741 is a prime.

Together with 9940759, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9940751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4970378 + 4970379.

It is an arithmetic number, because the mean of its divisors is an integer number (4970379).

Almost surely, 2^9940757 is an apocalyptic number.

It is an amenable number.

9940757 is a deficient number, since it is larger than the sum of its proper divisors (1).

9940757 is an equidigital number, since it uses as much as digits as its factorization.

9940757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 9940757 is about 3152.8966047113. The cubic root of 9940757 is about 215.0171754802.

The spelling of 9940757 in words is "nine million, nine hundred forty thousand, seven hundred fifty-seven".