10606991 has 8 divisors (see below), whose sum is σ = 10986624. Its totient is φ = 10229760.

The previous prime is 10606969. The next prime is 10606993. The reversal of 10606991 is 19960601.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10606991 is a prime.

It is a super-2 number, since 2×10606991² = 225016516148162, 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 (10606993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17591 + ... + 18183.

It is an arithmetic number, because the mean of its divisors is an integer number (1373328).

Almost surely, 2^10606991 is an apocalyptic number.

10606991 is a deficient number, since it is larger than the sum of its proper divisors (379633).

10606991 is an equidigital number, since it uses as much as digits as its factorization.

10606991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 10606991 is about 3256.8375765457. The cubic root of 10606991 is about 219.7172055139.

The spelling of 10606991 in words is "ten million, six hundred six thousand, nine hundred ninety-one".