670733137 has 2 divisors, whose sum is σ = 670733138. Its totient is φ = 670733136.

The previous prime is 670733111. The next prime is 670733159. The reversal of 670733137 is 731337076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 670602816 + 130321 = 25896^2 + 361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670733137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 670733096 and 670733105.

It is not a weakly prime, because it can be changed into another prime (670733177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335366568 + 335366569.

It is an arithmetic number, because the mean of its divisors is an integer number (335366569).

Almost surely, 2^670733137 is an apocalyptic number.

It is an amenable number.

670733137 is a deficient number, since it is larger than the sum of its proper divisors (1).

670733137 is an equidigital number, since it uses as much as digits as its factorization.

670733137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55566, while the sum is 37.

The square root of 670733137 is about 25898.5161157932. The cubic root of 670733137 is about 875.3530600255.

The spelling of 670733137 in words is "six hundred seventy million, seven hundred thirty-three thousand, one hundred thirty-seven".