10688749 has 4 divisors (see below), whose sum is σ = 10736064. Its totient is φ = 10641436.

The previous prime is 10688737. The next prime is 10688753. The reversal of 10688749 is 94788601.

10688749 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10688749 is a prime.

It is a super-2 number, since 2×10688749² = 228498710370002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10688719) 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, 23317 + ... + 23770.

It is an arithmetic number, because the mean of its divisors is an integer number (2684016).

Almost surely, 2^10688749 is an apocalyptic number.

It is an amenable number.

10688749 is a deficient number, since it is larger than the sum of its proper divisors (47315).

10688749 is an equidigital number, since it uses as much as digits as its factorization.

10688749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47314.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 10688749 is about 3269.3652289091. The cubic root of 10688749 is about 220.2802832592.

The spelling of 10688749 in words is "ten million, six hundred eighty-eight thousand, seven hundred forty-nine".