672351773 has 2 divisors, whose sum is σ = 672351774. Its totient is φ = 672351772.

The previous prime is 672351769. The next prime is 672351793. The reversal of 672351773 is 377153276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 661415524 + 10936249 = 25718^2 + 3307^2 .

It is a cyclic number.

It is not a de Polignac number, because 672351773 - 2² = 672351769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 672351773.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672351763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336175886 + 336175887.

It is an arithmetic number, because the mean of its divisors is an integer number (336175887).

Almost surely, 2^672351773 is an apocalyptic number.

It is an amenable number.

672351773 is a deficient number, since it is larger than the sum of its proper divisors (1).

672351773 is an equidigital number, since it uses as much as digits as its factorization.

672351773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 185220, while the sum is 41.

The square root of 672351773 is about 25929.7468749697. The cubic root of 672351773 is about 876.0566382797.

The spelling of 672351773 in words is "six hundred seventy-two million, three hundred fifty-one thousand, seven hundred seventy-three".