10728997 has 4 divisors (see below), whose sum is σ = 10829376. Its totient is φ = 10628620.

The previous prime is 10728967. The next prime is 10729027. The reversal of 10728997 is 79982701.

It is a happy number.

10728997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (10728967) and next prime (10729027).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10728997 is a prime.

It is a super-2 number, since 2×10728997² = 230222753252018, which contains 22 as substring.

It is a Duffinian number.

10728997 is a modest number, since divided by 28997 gives 107 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10728937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50029 + ... + 50242.

It is an arithmetic number, because the mean of its divisors is an integer number (2707344).

Almost surely, 2^10728997 is an apocalyptic number.

It is an amenable number.

10728997 is a deficient number, since it is larger than the sum of its proper divisors (100379).

10728997 is a wasteful number, since it uses less digits than its factorization.

10728997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100378.

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 10728997 is about 3275.5147687043. The cubic root of 10728997 is about 220.5564220941.

The spelling of 10728997 in words is "ten million, seven hundred twenty-eight thousand, nine hundred ninety-seven".