10721895 has 16 divisors (see below), whose sum is σ = 17334240. Its totient is φ = 5658624.

The previous prime is 10721881. The next prime is 10721899. The reversal of 10721895 is 59812701.

It is not a de Polignac number, because 10721895 - 2⁵ = 10721863 is a prime.

It is a super-2 number, since 2×10721895² = 229918064782050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10721899) 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 15 ways as a sum of consecutive naturals, for example, 2230 + ... + 5139.

It is an arithmetic number, because the mean of its divisors is an integer number (1083390).

Almost surely, 2^10721895 is an apocalyptic number.

10721895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10721895 is a deficient number, since it is larger than the sum of its proper divisors (6612345).

10721895 is an equidigital number, since it uses as much as digits as its factorization.

10721895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7474.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 10721895 is about 3274.4304848324. The cubic root of 10721895 is about 220.5077459859.

The spelling of 10721895 in words is "ten million, seven hundred twenty-one thousand, eight hundred ninety-five".