10303493 has 4 divisors (see below), whose sum is σ = 10347948. Its totient is φ = 10259040.

The previous prime is 10303487. The next prime is 10303511. The reversal of 10303493 is 39430301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39430301 = 19 ⋅2075279.

It can be written as a sum of positive squares in 2 ways, for example, as 6980164 + 3323329 = 2642^2 + 1823^2 .

It is a cyclic number.

It is not a de Polignac number, because 10303493 - 2⁴ = 10303477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10303483) 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, 21878 + ... + 22343.

It is an arithmetic number, because the mean of its divisors is an integer number (2586987).

Almost surely, 2^10303493 is an apocalyptic number.

It is an amenable number.

10303493 is a deficient number, since it is larger than the sum of its proper divisors (44455).

10303493 is an equidigital number, since it uses as much as digits as its factorization.

10303493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44454.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 10303493 is about 3209.9054503209. The cubic root of 10303493 is about 217.6013039340.

Adding to 10303493 its reverse (39430301), we get a palindrome (49733794).

The spelling of 10303493 in words is "ten million, three hundred three thousand, four hundred ninety-three".