9497861 has 2 divisors, whose sum is σ = 9497862. Its totient is φ = 9497860.

The previous prime is 9497843. The next prime is 9497869. The reversal of 9497861 is 1687949.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9333025 + 164836 = 3055^2 + 406^2 .

It is an emirp because it is prime and its reverse (1687949) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9497861 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 (9497869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4748930 + 4748931.

It is an arithmetic number, because the mean of its divisors is an integer number (4748931).

Almost surely, 2^9497861 is an apocalyptic number.

It is an amenable number.

9497861 is a deficient number, since it is larger than the sum of its proper divisors (1).

9497861 is an equidigital number, since it uses as much as digits as its factorization.

9497861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 44.

The square root of 9497861 is about 3081.8599903305. The cubic root of 9497861 is about 211.7752825343.

The spelling of 9497861 in words is "nine million, four hundred ninety-seven thousand, eight hundred sixty-one".