673525429 has 2 divisors, whose sum is σ = 673525430. Its totient is φ = 673525428.

The previous prime is 673525421. The next prime is 673525439. The reversal of 673525429 is 924525376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 485012529 + 188512900 = 22023^2 + 13730^2 .

It is a cyclic number.

It is not a de Polignac number, because 673525429 - 2³ = 673525421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673525421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336762714 + 336762715.

It is an arithmetic number, because the mean of its divisors is an integer number (336762715).

Almost surely, 2^673525429 is an apocalyptic number.

It is an amenable number.

673525429 is a deficient number, since it is larger than the sum of its proper divisors (1).

673525429 is an equidigital number, since it uses as much as digits as its factorization.

673525429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 43.

The square root of 673525429 is about 25952.3684660957. The cubic root of 673525429 is about 876.5660895730.

The spelling of 673525429 in words is "six hundred seventy-three million, five hundred twenty-five thousand, four hundred twenty-nine".