1672188433 has 2 divisors, whose sum is σ = 1672188434. Its totient is φ = 1672188432.

The previous prime is 1672188431. The next prime is 1672188449. The reversal of 1672188433 is 3348812761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1351885824 + 320302609 = 36768^2 + 17897^2 .

It is a cyclic number.

It is not a de Polignac number, because 1672188433 - 2¹ = 1672188431 is a prime.

Together with 1672188431, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1672188433.

It is not a weakly prime, because it can be changed into another prime (1672188431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836094216 + 836094217.

It is an arithmetic number, because the mean of its divisors is an integer number (836094217).

Almost surely, 2^1672188433 is an apocalyptic number.

It is an amenable number.

1672188433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672188433 is an equidigital number, since it uses as much as digits as its factorization.

1672188433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 43.

The square root of 1672188433 is about 40892.4006754311. The cubic root of 1672188433 is about 1186.9390137412.

The spelling of 1672188433 in words is "one billion, six hundred seventy-two million, one hundred eighty-eight thousand, four hundred thirty-three".