673722433 has 2 divisors, whose sum is σ = 673722434. Its totient is φ = 673722432.

The previous prime is 673722421. The next prime is 673722443. The reversal of 673722433 is 334227376.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 634183489 + 39538944 = 25183^2 + 6288^2 .

It is a cyclic number.

It is not a de Polignac number, because 673722433 - 2²⁹ = 136851521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 673722392 and 673722401.

It is not a weakly prime, because it can be changed into another prime (673722443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336861216 + 336861217.

It is an arithmetic number, because the mean of its divisors is an integer number (336861217).

Almost surely, 2^673722433 is an apocalyptic number.

It is an amenable number.

673722433 is a deficient number, since it is larger than the sum of its proper divisors (1).

673722433 is an equidigital number, since it uses as much as digits as its factorization.

673722433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 37.

The square root of 673722433 is about 25956.1636803284. The cubic root of 673722433 is about 876.6515454862.

The spelling of 673722433 in words is "six hundred seventy-three million, seven hundred twenty-two thousand, four hundred thirty-three".