670516771 has 16 divisors (see below), whose sum is σ = 725983776. Its totient is φ = 616974336.

The previous prime is 670516757. The next prime is 670516787. The reversal of 670516771 is 177615076.

It is not a de Polignac number, because 670516771 - 2⁷ = 670516643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (670516271) 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 in 15 ways as a sum of consecutive naturals, for example, 153895 + ... + 158191.

It is an arithmetic number, because the mean of its divisors is an integer number (45373986).

Almost surely, 2^670516771 is an apocalyptic number.

670516771 is a deficient number, since it is larger than the sum of its proper divisors (55467005).

670516771 is a wasteful number, since it uses less digits than its factorization.

670516771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4518.

The product of its (nonzero) digits is 61740, while the sum is 40.

The square root of 670516771 is about 25894.3385897381. The cubic root of 670516771 is about 875.2589257126.

The spelling of 670516771 in words is "six hundred seventy million, five hundred sixteen thousand, seven hundred seventy-one".