9129797 has 6 divisors (see below), whose sum is σ = 9330438. Its totient is φ = 8933384.

The previous prime is 9129773. The next prime is 9129811. The reversal of 9129797 is 7979219.

9129797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8491396 + 638401 = 2914^2 + 799^2 .

It is not a de Polignac number, because 9129797 - 2¹⁴ = 9113413 is a prime.

It is a super-2 number, since 2×9129797² = 166706386522418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9129767) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 143 + ... + 4275.

It is an arithmetic number, because the mean of its divisors is an integer number (1555073).

Almost surely, 2^9129797 is an apocalyptic number.

It is an amenable number.

9129797 is a deficient number, since it is larger than the sum of its proper divisors (200641).

9129797 is an equidigital number, since it uses as much as digits as its factorization.

9129797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4227 (or 4180 counting only the distinct ones).

The product of its digits is 71442, while the sum is 44.

The square root of 9129797 is about 3021.5553941637. Note that the first 3 decimals coincide. The cubic root of 9129797 is about 209.0035712858.

The spelling of 9129797 in words is "nine million, one hundred twenty-nine thousand, seven hundred ninety-seven".