1672973669 has 2 divisors, whose sum is σ = 1672973670. Its totient is φ = 1672973668.

The previous prime is 1672973641. The next prime is 1672973707. The reversal of 1672973669 is 9663792761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 847101025 + 825872644 = 29105^2 + 28738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1672973669 is a prime.

It is a super-2 number, since 2×1672973669² = 5597681794334643122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1672973629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836486834 + 836486835.

It is an arithmetic number, because the mean of its divisors is an integer number (836486835).

Almost surely, 2^1672973669 is an apocalyptic number.

It is an amenable number.

1672973669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672973669 is an equidigital number, since it uses as much as digits as its factorization.

1672973669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5143824, while the sum is 56.

The square root of 1672973669 is about 40902.0007945822. Note that the first 3 decimals coincide. The cubic root of 1672973669 is about 1187.1247745829.

The spelling of 1672973669 in words is "one billion, six hundred seventy-two million, nine hundred seventy-three thousand, six hundred sixty-nine".