10091797 has 4 divisors (see below), whose sum is σ = 10439820. Its totient is φ = 9743776.

The previous prime is 10091789. The next prime is 10091813. The reversal of 10091797 is 79719001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79719001 = 17 ⋅4689353.

It can be written as a sum of positive squares in 2 ways, for example, as 3896676 + 6195121 = 1974^2 + 2489^2 .

It is a cyclic number.

It is not a de Polignac number, because 10091797 - 2³ = 10091789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10091737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173968 + ... + 174025.

It is an arithmetic number, because the mean of its divisors is an integer number (2609955).

Almost surely, 2^10091797 is an apocalyptic number.

It is an amenable number.

10091797 is a deficient number, since it is larger than the sum of its proper divisors (348023).

10091797 is an equidigital number, since it uses as much as digits as its factorization.

10091797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348022.

The product of its (nonzero) digits is 3969, while the sum is 34.

The square root of 10091797 is about 3176.7588828868. The cubic root of 10091797 is about 216.1006975042.

The spelling of 10091797 in words is "ten million, ninety-one thousand, seven hundred ninety-seven".