670543457 has 2 divisors, whose sum is σ = 670543458. Its totient is φ = 670543456.

The previous prime is 670543429. The next prime is 670543483. The reversal of 670543457 is 754345076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 638269696 + 32273761 = 25264^2 + 5681^2 .

It is a cyclic number.

It is not a de Polignac number, because 670543457 - 2²⁶ = 603434593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (670543417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335271728 + 335271729.

It is an arithmetic number, because the mean of its divisors is an integer number (335271729).

Almost surely, 2^670543457 is an apocalyptic number.

It is an amenable number.

670543457 is a deficient number, since it is larger than the sum of its proper divisors (1).

670543457 is an equidigital number, since it uses as much as digits as its factorization.

670543457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 352800, while the sum is 41.

The square root of 670543457 is about 25894.8538709914. The cubic root of 670543457 is about 875.2705370800.

The spelling of 670543457 in words is "six hundred seventy million, five hundred forty-three thousand, four hundred fifty-seven".