9940537 has 2 divisors, whose sum is σ = 9940538. Its totient is φ = 9940536.

The previous prime is 9940519. The next prime is 9940561. The reversal of 9940537 is 7350499.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9916201 + 24336 = 3149^2 + 156^2 .

It is a cyclic number.

It is not a de Polignac number, because 9940537 - 2¹⁵ = 9907769 is a prime.

It is a super-4 number, since 4×9940537⁴ (a number of 29 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9940496 and 9940505.

It is not a weakly prime, because it can be changed into another prime (9940507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4970268 + 4970269.

It is an arithmetic number, because the mean of its divisors is an integer number (4970269).

Almost surely, 2^9940537 is an apocalyptic number.

It is an amenable number.

9940537 is a deficient number, since it is larger than the sum of its proper divisors (1).

9940537 is an equidigital number, since it uses as much as digits as its factorization.

9940537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 9940537 is about 3152.8617159654. The cubic root of 9940537 is about 215.0155892789.

The spelling of 9940537 in words is "nine million, nine hundred forty thousand, five hundred thirty-seven".