10721849 has 8 divisors (see below), whose sum is σ = 11404008. Its totient is φ = 10045440.

The previous prime is 10721831. The next prime is 10721861. The reversal of 10721849 is 94812701.

10721849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7463824 + 3258025 = 2732^2 + 1805^2 .

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 10721849 - 2²⁰ = 9673273 is a prime.

It is a super-2 number, since 2×10721849² = 229916091957602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10721819) 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, 2789 + ... + 5405.

It is an arithmetic number, because the mean of its divisors is an integer number (1425501).

Almost surely, 2^10721849 is an apocalyptic number.

It is an amenable number.

10721849 is a deficient number, since it is larger than the sum of its proper divisors (682159).

10721849 is a wasteful number, since it uses less digits than its factorization.

10721849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2875.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 10721849 is about 3274.4234607027. The cubic root of 10721849 is about 220.5074306383.

The spelling of 10721849 in words is "ten million, seven hundred twenty-one thousand, eight hundred forty-nine".