670758212 has 6 divisors (see below), whose sum is σ = 1173826878. Its totient is φ = 335379104.

The previous prime is 670758211. The next prime is 670758233. The reversal of 670758212 is 212857076.

It can be written as a sum of positive squares in only one way, i.e., 668946496 + 1811716 = 25864^2 + 1346^2 .

It is not an unprimeable number, because it can be changed into a prime (670758211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83844773 + ... + 83844780.

It is an arithmetic number, because the mean of its divisors is an integer number (195637813).

Almost surely, 2^670758212 is an apocalyptic number.

It is an amenable number.

670758212 is a deficient number, since it is larger than the sum of its proper divisors (503068666).

670758212 is a wasteful number, since it uses less digits than its factorization.

670758212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167689557 (or 167689555 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 670758212 is about 25899.0002123634. Note that the first 3 decimals coincide. The cubic root of 670758212 is about 875.3639680918.

The spelling of 670758212 in words is "six hundred seventy million, seven hundred fifty-eight thousand, two hundred twelve".