672703393 has 2 divisors, whose sum is σ = 672703394. Its totient is φ = 672703392.

The previous prime is 672703391. The next prime is 672703457. The reversal of 672703393 is 393307276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 650913169 + 21790224 = 25513^2 + 4668^2 .

It is a cyclic number.

It is not a de Polignac number, because 672703393 - 2¹ = 672703391 is a prime.

Together with 672703391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (672703391) 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, 336351696 + 336351697.

It is an arithmetic number, because the mean of its divisors is an integer number (336351697).

Almost surely, 2^672703393 is an apocalyptic number.

It is an amenable number.

672703393 is a deficient number, since it is larger than the sum of its proper divisors (1).

672703393 is an equidigital number, since it uses as much as digits as its factorization.

672703393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 142884, while the sum is 40.

The square root of 672703393 is about 25936.5262323234. The cubic root of 672703393 is about 876.2093288625.

The spelling of 672703393 in words is "six hundred seventy-two million, seven hundred three thousand, three hundred ninety-three".