1673123434 has 4 divisors (see below), whose sum is σ = 2509685154. Its totient is φ = 836561716.

The previous prime is 1673123429. The next prime is 1673123453. The reversal of 1673123434 is 4343213761.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1354608025 + 318515409 = 36805^2 + 17847^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1673123434.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 418280857 + ... + 418280860.

Almost surely, 2^1673123434 is an apocalyptic number.

1673123434 is a deficient number, since it is larger than the sum of its proper divisors (836561720).

1673123434 is an equidigital number, since it uses as much as digits as its factorization.

1673123434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836561719.

The product of its digits is 36288, while the sum is 34.

The square root of 1673123434 is about 40903.8315320215. The cubic root of 1673123434 is about 1187.1601974231.

The spelling of 1673123434 in words is "one billion, six hundred seventy-three million, one hundred twenty-three thousand, four hundred thirty-four".