10249891 has 8 divisors (see below), whose sum is σ = 10517184. Its totient is φ = 9985920.

The previous prime is 10249879. The next prime is 10249937. The reversal of 10249891 is 19894201.

10249891 = T₂₃₉ + T₂₄₀ + ... + T₄₂₁.

10249891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10249891 - 2¹¹ = 10247843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10249801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6150 + ... + 7636.

It is an arithmetic number, because the mean of its divisors is an integer number (1314648).

Almost surely, 2^10249891 is an apocalyptic number.

10249891 is a deficient number, since it is larger than the sum of its proper divisors (267293).

10249891 is a wasteful number, since it uses less digits than its factorization.

10249891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 10249891 is about 3201.5450957311. The cubic root of 10249891 is about 217.2233042882.

The spelling of 10249891 in words is "ten million, two hundred forty-nine thousand, eight hundred ninety-one".