1223807473 has 4 divisors (see below), whose sum is σ = 1398637120. Its totient is φ = 1048977828.

The previous prime is 1223807467. The next prime is 1223807503. The reversal of 1223807473 is 3747083221.

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: 3747083221 = 7 ⋅535297603.

It is a cyclic number.

It is not a de Polignac number, because 1223807473 - 2²⁵ = 1190253041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223807413) 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, 87414813 + ... + 87414826.

It is an arithmetic number, because the mean of its divisors is an integer number (349659280).

Almost surely, 2^1223807473 is an apocalyptic number.

It is an amenable number.

1223807473 is a deficient number, since it is larger than the sum of its proper divisors (174829647).

1223807473 is an equidigital number, since it uses as much as digits as its factorization.

1223807473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174829646.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 1223807473 is about 34982.9597518563. The cubic root of 1223807473 is about 1069.6401599558.

The spelling of 1223807473 in words is "one billion, two hundred twenty-three million, eight hundred seven thousand, four hundred seventy-three".