10453721 has 8 divisors (see below), whose sum is σ = 10779840. Its totient is φ = 10129968.

The previous prime is 10453697. The next prime is 10453733. The reversal of 10453721 is 12735401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10453721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10453741) 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 7 ways as a sum of consecutive naturals, for example, 12890 + ... + 13676.

It is an arithmetic number, because the mean of its divisors is an integer number (1347480).

Almost surely, 2^10453721 is an apocalyptic number.

It is an amenable number.

10453721 is a deficient number, since it is larger than the sum of its proper divisors (326119).

10453721 is an equidigital number, since it uses as much as digits as its factorization.

10453721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 10453721 is about 3233.2214585456. The cubic root of 10453721 is about 218.6537692650.

The spelling of 10453721 in words is "ten million, four hundred fifty-three thousand, seven hundred twenty-one".