940207997 has 2 divisors, whose sum is σ = 940207998. Its totient is φ = 940207996.

The previous prime is 940207987. The next prime is 940208033. The reversal of 940207997 is 799702049.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 646634041 + 293573956 = 25429^2 + 17134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-940207997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (940207907) 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, 470103998 + 470103999.

It is an arithmetic number, because the mean of its divisors is an integer number (470103999).

Almost surely, 2^940207997 is an apocalyptic number.

It is an amenable number.

940207997 is a deficient number, since it is larger than the sum of its proper divisors (1).

940207997 is an equidigital number, since it uses as much as digits as its factorization.

940207997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 285768, while the sum is 47.

The square root of 940207997 is about 30662.8113029448. The cubic root of 940207997 is about 979.6583555047.

The spelling of 940207997 in words is "nine hundred forty million, two hundred seven thousand, nine hundred ninety-seven".