12902723 has 4 divisors (see below), whose sum is σ = 12934680. Its totient is φ = 12870768.

The previous prime is 12902717. The next prime is 12902761. The reversal of 12902723 is 32720921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32720921 = 107 ⋅305803.

It is a cyclic number.

It is not a de Polignac number, because 12902723 - 2¹⁰ = 12901699 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12902692 and 12902701.

It is not an unprimeable number, because it can be changed into a prime (12902783) 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, 15365 + ... + 16182.

It is an arithmetic number, because the mean of its divisors is an integer number (3233670).

Almost surely, 2^12902723 is an apocalyptic number.

12902723 is a deficient number, since it is larger than the sum of its proper divisors (31957).

12902723 is an equidigital number, since it uses as much as digits as its factorization.

12902723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31956.

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

The square root of 12902723 is about 3592.0360521576. The cubic root of 12902723 is about 234.5455105999.

The spelling of 12902723 in words is "twelve million, nine hundred two thousand, seven hundred twenty-three".