10492991 has 8 divisors (see below), whose sum is σ = 11060064. Its totient is φ = 9935200.

The previous prime is 10492987. The next prime is 10493033. The reversal of 10492991 is 19929401.

10492991 = 271² + 272² + ... + 371².

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

It is a cyclic number.

It is not a de Polignac number, because 10492991 - 2² = 10492987 is a prime.

It is a super-2 number, since 2×10492991² = 220205720252162, 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 (10492931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65 + ... + 4581.

It is an arithmetic number, because the mean of its divisors is an integer number (1382508).

Almost surely, 2^10492991 is an apocalyptic number.

10492991 is a deficient number, since it is larger than the sum of its proper divisors (567073).

10492991 is a wasteful number, since it uses less digits than its factorization.

10492991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4641.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 10492991 is about 3239.2886564800. The cubic root of 10492991 is about 218.9272222606.

The spelling of 10492991 in words is "ten million, four hundred ninety-two thousand, nine hundred ninety-one".