673992001 has 2 divisors, whose sum is σ = 673992002. Its totient is φ = 673992000.

The previous prime is 673991993. The next prime is 673992029. The reversal of 673992001 is 100299376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 606341376 + 67650625 = 24624^2 + 8225^2 .

It is a cyclic number.

It is not a de Polignac number, because 673992001 - 2³ = 673991993 is a prime.

It is not a weakly prime, because it can be changed into another prime (673992031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336996000 + 336996001.

It is an arithmetic number, because the mean of its divisors is an integer number (336996001).

Almost surely, 2^673992001 is an apocalyptic number.

It is an amenable number.

673992001 is a deficient number, since it is larger than the sum of its proper divisors (1).

673992001 is an equidigital number, since it uses as much as digits as its factorization.

673992001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 673992001 is about 25961.3559160534. The cubic root of 673992001 is about 876.7684510451.

The spelling of 673992001 in words is "six hundred seventy-three million, nine hundred ninety-two thousand, one".