940785397 has 2 divisors, whose sum is σ = 940785398. Its totient is φ = 940785396.

The previous prime is 940785379. The next prime is 940785401. The reversal of 940785397 is 793587049.

Together with previous prime (940785379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 494350756 + 446434641 = 22234^2 + 21129^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-940785397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (940785337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470392698 + 470392699.

It is an arithmetic number, because the mean of its divisors is an integer number (470392699).

Almost surely, 2^940785397 is an apocalyptic number.

It is an amenable number.

940785397 is a deficient number, since it is larger than the sum of its proper divisors (1).

940785397 is an equidigital number, since it uses as much as digits as its factorization.

940785397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 52.

The square root of 940785397 is about 30672.2251719695. The cubic root of 940785397 is about 979.8588568770.

The spelling of 940785397 in words is "nine hundred forty million, seven hundred eighty-five thousand, three hundred ninety-seven".