10690291 has 4 divisors (see below), whose sum is σ = 10917792. Its totient is φ = 10462792.

The previous prime is 10690289. The next prime is 10690301. The reversal of 10690291 is 19209601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19209601 = 1657 ⋅11593.

It is a cyclic number.

It is not a de Polignac number, because 10690291 - 2¹ = 10690289 is a prime.

It is a super-2 number, since 2×10690291² = 228564643329362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10696291) 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, 113680 + ... + 113773.

It is an arithmetic number, because the mean of its divisors is an integer number (2729448).

Almost surely, 2^10690291 is an apocalyptic number.

10690291 is a deficient number, since it is larger than the sum of its proper divisors (227501).

10690291 is an equidigital number, since it uses as much as digits as its factorization.

10690291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227500.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 10690291 is about 3269.6010459993. The cubic root of 10690291 is about 220.2908755765.

Adding to 10690291 its reverse (19209601), we get a palindrome (29899892).

The spelling of 10690291 in words is "ten million, six hundred ninety thousand, two hundred ninety-one".