12473661 has 4 divisors (see below), whose sum is σ = 16631552. Its totient is φ = 8315772.

The previous prime is 12473651. The next prime is 12473663. The reversal of 12473661 is 16637421.

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 not a de Polignac number, because 12473661 - 2⁷ = 12473533 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 (12473663) 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, 2078941 + ... + 2078946.

It is an arithmetic number, because the mean of its divisors is an integer number (4157888).

Almost surely, 2^12473661 is an apocalyptic number.

It is an amenable number.

12473661 is a deficient number, since it is larger than the sum of its proper divisors (4157891).

12473661 is an equidigital number, since it uses as much as digits as its factorization.

12473661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4157890.

The product of its digits is 6048, while the sum is 30.

The square root of 12473661 is about 3531.8070445595. The cubic root of 12473661 is about 231.9163206440.

The spelling of 12473661 in words is "twelve million, four hundred seventy-three thousand, six hundred sixty-one".