940797917 has 2 divisors, whose sum is σ = 940797918. Its totient is φ = 940797916.

The previous prime is 940797887. The next prime is 940797941. The reversal of 940797917 is 719797049.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 480223396 + 460574521 = 21914^2 + 21461^2 .

It is an emirp because it is prime and its reverse (719797049) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 940797917 - 2¹⁸ = 940535773 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (940797947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470398958 + 470398959.

It is an arithmetic number, because the mean of its divisors is an integer number (470398959).

Almost surely, 2^940797917 is an apocalyptic number.

It is an amenable number.

940797917 is a deficient number, since it is larger than the sum of its proper divisors (1).

940797917 is an equidigital number, since it uses as much as digits as its factorization.

940797917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000188, while the sum is 53.

The square root of 940797917 is about 30672.4292647322. The cubic root of 940797917 is about 979.8632035213.

The spelling of 940797917 in words is "nine hundred forty million, seven hundred ninety-seven thousand, nine hundred seventeen".