670377377 has 2 divisors, whose sum is σ = 670377378. Its totient is φ = 670377376.

The previous prime is 670377349. The next prime is 670377397. The reversal of 670377377 is 773773076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 659513761 + 10863616 = 25681^2 + 3296^2 .

It is a cyclic number.

It is not a de Polignac number, because 670377377 - 2⁶ = 670377313 is a prime.

It is not a weakly prime, because it can be changed into another prime (670377397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335188688 + 335188689.

It is an arithmetic number, because the mean of its divisors is an integer number (335188689).

Almost surely, 2^670377377 is an apocalyptic number.

It is an amenable number.

670377377 is a deficient number, since it is larger than the sum of its proper divisors (1).

670377377 is an equidigital number, since it uses as much as digits as its factorization.

670377377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907578, while the sum is 47.

The square root of 670377377 is about 25891.6468576257. The cubic root of 670377377 is about 875.1982688662.

The spelling of 670377377 in words is "six hundred seventy million, three hundred seventy-seven thousand, three hundred seventy-seven".