10491697 has 4 divisors (see below), whose sum is σ = 10529316. Its totient is φ = 10454080.

The previous prime is 10491653. The next prime is 10491709. The reversal of 10491697 is 79619401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7017201 + 3474496 = 2649^2 + 1864^2 .

It is a cyclic number.

It is not a de Polignac number, because 10491697 - 2¹¹ = 10489649 is a prime.

It is a super-2 number, since 2×10491697² = 220151411879618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10491647) 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, 18388 + ... + 18949.

It is an arithmetic number, because the mean of its divisors is an integer number (2632329).

Almost surely, 2^10491697 is an apocalyptic number.

It is an amenable number.

10491697 is a deficient number, since it is larger than the sum of its proper divisors (37619).

10491697 is an equidigital number, since it uses as much as digits as its factorization.

10491697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37618.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 10491697 is about 3239.0889151118. The cubic root of 10491697 is about 218.9182224920.

The spelling of 10491697 in words is "ten million, four hundred ninety-one thousand, six hundred ninety-seven".