1672445471 has 2 divisors, whose sum is σ = 1672445472. Its totient is φ = 1672445470.

The previous prime is 1672445441. The next prime is 1672445477. The reversal of 1672445471 is 1745442761.

It is a strong prime.

It is an emirp because it is prime and its reverse (1745442761) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1672445471 is a prime.

It is a super-3 number, since 3×1672445471³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1672445477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836222735 + 836222736.

It is an arithmetic number, because the mean of its divisors is an integer number (836222736).

Almost surely, 2^1672445471 is an apocalyptic number.

1672445471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672445471 is an equidigital number, since it uses as much as digits as its factorization.

1672445471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 41.

The square root of 1672445471 is about 40895.5434124551. The cubic root of 1672445471 is about 1186.9998268237. Note that the first 3 decimals are identical.

The spelling of 1672445471 in words is "one billion, six hundred seventy-two million, four hundred forty-five thousand, four hundred seventy-one".