10458721 has 32 divisors (see below), whose sum is σ = 14192640. Its totient is φ = 7470144.

The previous prime is 10458691. The next prime is 10458727. The reversal of 10458721 is 12785401.

It is a cyclic number.

It is not a de Polignac number, because 10458721 - 2⁷ = 10458593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10458721.

It is not an unprimeable number, because it can be changed into a prime (10458727) 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 31 ways as a sum of consecutive naturals, for example, 39636 + ... + 39898.

It is an arithmetic number, because the mean of its divisors is an integer number (443520).

Almost surely, 2^10458721 is an apocalyptic number.

10458721 is the 1729-th nonagonal number.

It is an amenable number.

10458721 is a deficient number, since it is larger than the sum of its proper divisors (3733919).

10458721 is a wasteful number, since it uses less digits than its factorization.

10458721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 10458721 is about 3233.9945887401. The cubic root of 10458721 is about 218.6886243050.

The spelling of 10458721 in words is "ten million, four hundred fifty-eight thousand, seven hundred twenty-one".