1672723112 has 8 divisors (see below), whose sum is σ = 3136355850. Its totient is φ = 836361552.

The previous prime is 1672723111. The next prime is 1672723127. The reversal of 1672723112 is 2113272761.

It can be written as a sum of positive squares in only one way, i.e., 1590892996 + 81830116 = 39886^2 + 9046^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1672723111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104545187 + ... + 104545202.

Almost surely, 2^1672723112 is an apocalyptic number.

It is an amenable number.

1672723112 is a deficient number, since it is larger than the sum of its proper divisors (1463632738).

1672723112 is a wasteful number, since it uses less digits than its factorization.

1672723112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209090395 (or 209090391 counting only the distinct ones).

The product of its digits is 7056, while the sum is 32.

The square root of 1672723112 is about 40898.9377857176. The cubic root of 1672723112 is about 1187.0655074074.

Adding to 1672723112 its reverse (2113272761), we get a palindrome (3785995873).

The spelling of 1672723112 in words is "one billion, six hundred seventy-two million, seven hundred twenty-three thousand, one hundred twelve".