672134873 has 2 divisors, whose sum is σ = 672134874. Its totient is φ = 672134872.

The previous prime is 672134863. The next prime is 672134941. The reversal of 672134873 is 378431276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 357852889 + 314281984 = 18917^2 + 17728^2 .

It is a cyclic number.

It is not a de Polignac number, because 672134873 - 2¹⁶ = 672069337 is a prime.

It is a super-2 number, since 2×672134873² = 903530575005452258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 672134873.

It is not a weakly prime, because it can be changed into another prime (672134833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336067436 + 336067437.

It is an arithmetic number, because the mean of its divisors is an integer number (336067437).

Almost surely, 2^672134873 is an apocalyptic number.

It is an amenable number.

672134873 is a deficient number, since it is larger than the sum of its proper divisors (1).

672134873 is an equidigital number, since it uses as much as digits as its factorization.

672134873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 41.

The square root of 672134873 is about 25925.5640825807. The cubic root of 672134873 is about 875.9624231534.

The spelling of 672134873 in words is "six hundred seventy-two million, one hundred thirty-four thousand, eight hundred seventy-three".