672180373 has 2 divisors, whose sum is σ = 672180374. Its totient is φ = 672180372.

The previous prime is 672180361. The next prime is 672180401. The reversal of 672180373 is 373081276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 515880369 + 156300004 = 22713^2 + 12502^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-672180373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672130373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336090186 + 336090187.

It is an arithmetic number, because the mean of its divisors is an integer number (336090187).

Almost surely, 2^672180373 is an apocalyptic number.

It is an amenable number.

672180373 is a deficient number, since it is larger than the sum of its proper divisors (1).

672180373 is an equidigital number, since it uses as much as digits as its factorization.

672180373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 672180373 is about 25926.4415799778. The cubic root of 672180373 is about 875.9821887255.

The spelling of 672180373 in words is "six hundred seventy-two million, one hundred eighty thousand, three hundred seventy-three".