670257001 has 4 divisors (see below), whose sum is σ = 670522500. Its totient is φ = 669991504.

The previous prime is 670256999. The next prime is 670257013. The reversal of 670257001 is 100752076.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 523265625 + 146991376 = 22875^2 + 12124^2 .

It is a cyclic number.

It is not a de Polignac number, because 670257001 - 2¹ = 670256999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670257041) 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 in 3 ways as a sum of consecutive naturals, for example, 128926 + ... + 134023.

It is an arithmetic number, because the mean of its divisors is an integer number (167630625).

Almost surely, 2^670257001 is an apocalyptic number.

It is an amenable number.

670257001 is a deficient number, since it is larger than the sum of its proper divisors (265499).

670257001 is a wasteful number, since it uses less digits than its factorization.

670257001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265498.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 670257001 is about 25889.3221425359. The cubic root of 670257001 is about 875.1458808745.

The spelling of 670257001 in words is "six hundred seventy million, two hundred fifty-seven thousand, one".