940217797 has 2 divisors, whose sum is σ = 940217798. Its totient is φ = 940217796.

The previous prime is 940217779. The next prime is 940217801. The reversal of 940217797 is 797712049.

Together with previous prime (940217779) 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., 892455876 + 47761921 = 29874^2 + 6911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-940217797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (940217737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470108898 + 470108899.

It is an arithmetic number, because the mean of its divisors is an integer number (470108899).

Almost surely, 2^940217797 is an apocalyptic number.

It is an amenable number.

940217797 is a deficient number, since it is larger than the sum of its proper divisors (1).

940217797 is an equidigital number, since it uses as much as digits as its factorization.

940217797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 222264, while the sum is 46.

The square root of 940217797 is about 30662.9711052272. The cubic root of 940217797 is about 979.6617592262.

The spelling of 940217797 in words is "nine hundred forty million, two hundred seventeen thousand, seven hundred ninety-seven".