10499721 has 8 divisors (see below), whose sum is σ = 14034720. Its totient is φ = 6982272.

The previous prime is 10499719. The next prime is 10499729. The reversal of 10499721 is 12799401.

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

It is not a de Polignac number, because 10499721 - 2¹ = 10499719 is a prime.

It is a super-2 number, since 2×10499721² = 220488282155682, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10499729) 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, 2920 + ... + 5433.

It is an arithmetic number, because the mean of its divisors is an integer number (1754340).

Almost surely, 2^10499721 is an apocalyptic number.

It is an amenable number.

10499721 is a deficient number, since it is larger than the sum of its proper divisors (3534999).

10499721 is an equidigital number, since it uses as much as digits as its factorization.

10499721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8775.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 10499721 is about 3240.3272982833. The cubic root of 10499721 is about 218.9740174759.

The spelling of 10499721 in words is "ten million, four hundred ninety-nine thousand, seven hundred twenty-one".