10209743 has 4 divisors (see below), whose sum is σ = 10485720. Its totient is φ = 9933768.

The previous prime is 10209739. The next prime is 10209799. The reversal of 10209743 is 34790201.

10209743 is digitally balanced in base 3, 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 an emirpimes, since its reverse is a distinct semiprime: 34790201 = 1901 ⋅18301.

It is a cyclic number.

It is not a de Polignac number, because 10209743 - 2² = 10209739 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10209343) 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, 137933 + ... + 138006.

It is an arithmetic number, because the mean of its divisors is an integer number (2621430).

Almost surely, 2^10209743 is an apocalyptic number.

10209743 is a deficient number, since it is larger than the sum of its proper divisors (275977).

10209743 is an equidigital number, since it uses as much as digits as its factorization.

10209743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275976.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 10209743 is about 3195.2688462788. The cubic root of 10209743 is about 216.9393177672.

Adding to 10209743 its reverse (34790201), we get a palindrome (44999944).

The spelling of 10209743 in words is "ten million, two hundred nine thousand, seven hundred forty-three".