1672448069 has 2 divisors, whose sum is σ = 1672448070. Its totient is φ = 1672448068.

The previous prime is 1672448027. The next prime is 1672448159. The reversal of 1672448069 is 9608442761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1605043969 + 67404100 = 40063^2 + 8210^2 .

It is an emirp because it is prime and its reverse (9608442761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1672448069 - 2²⁴ = 1655670853 is a prime.

It is a super-2 number, since 2×1672448069² = 5594165087003657522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1672448269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836224034 + 836224035.

It is an arithmetic number, because the mean of its divisors is an integer number (836224035).

Almost surely, 2^1672448069 is an apocalyptic number.

It is an amenable number.

1672448069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672448069 is an equidigital number, since it uses as much as digits as its factorization.

1672448069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 1672448069 is about 40895.5751762951. The cubic root of 1672448069 is about 1187.0004414574. Note that the first 3 decimals are identical.

The spelling of 1672448069 in words is "one billion, six hundred seventy-two million, four hundred forty-eight thousand, sixty-nine".