12723049 has 4 divisors (see below), whose sum is σ = 12842064. Its totient is φ = 12604036.

The previous prime is 12723031. The next prime is 12723059. The reversal of 12723049 is 94032721.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94032721 = 41 ⋅2293481.

It is a cyclic number.

It is not a de Polignac number, because 12723049 - 2⁵ = 12723017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12723019) 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, 59347 + ... + 59560.

It is an arithmetic number, because the mean of its divisors is an integer number (3210516).

Almost surely, 2^12723049 is an apocalyptic number.

It is an amenable number.

12723049 is a deficient number, since it is larger than the sum of its proper divisors (119015).

12723049 is a wasteful number, since it uses less digits than its factorization.

12723049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119014.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 12723049 is about 3566.9383229879. The cubic root of 12723049 is about 233.4517138530.

The spelling of 12723049 in words is "twelve million, seven hundred twenty-three thousand, forty-nine".