9790397 has 2 divisors, whose sum is σ = 9790398. Its totient is φ = 9790396.

The previous prime is 9790381. The next prime is 9790399. The reversal of 9790397 is 7930979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4923961 + 4866436 = 2219^2 + 2206^2 .

It is a cyclic number.

It is not a de Polignac number, because 9790397 - 2⁴ = 9790381 is a prime.

Together with 9790399, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9790399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4895198 + 4895199.

It is an arithmetic number, because the mean of its divisors is an integer number (4895199).

Almost surely, 2^9790397 is an apocalyptic number.

9790397 is the 1673-rd centered heptagonal number.

It is an amenable number.

9790397 is a deficient number, since it is larger than the sum of its proper divisors (1).

9790397 is an equidigital number, since it uses as much as digits as its factorization.

9790397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107163, while the sum is 44.

The square root of 9790397 is about 3128.9610096644. The cubic root of 9790397 is about 213.9275746995.

The spelling of 9790397 in words is "nine million, seven hundred ninety thousand, three hundred ninety-seven".