672471133 has 2 divisors, whose sum is σ = 672471134. Its totient is φ = 672471132.

The previous prime is 672471073. The next prime is 672471143. The reversal of 672471133 is 331174276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 366990649 + 305480484 = 19157^2 + 17478^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-672471133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672471143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336235566 + 336235567.

It is an arithmetic number, because the mean of its divisors is an integer number (336235567).

Almost surely, 2^672471133 is an apocalyptic number.

It is an amenable number.

672471133 is a deficient number, since it is larger than the sum of its proper divisors (1).

672471133 is an equidigital number, since it uses as much as digits as its factorization.

672471133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 34.

The square root of 672471133 is about 25932.0483764781. The cubic root of 672471133 is about 876.1084761902.

The spelling of 672471133 in words is "six hundred seventy-two million, four hundred seventy-one thousand, one hundred thirty-three".