670366205 has 6 divisors (see below), whose sum is σ = 804508926. Its totient is φ = 536246648.

The previous prime is 670366199. The next prime is 670366231. The reversal of 670366205 is 502663076.

It can be written as a sum of positive squares in only one way, i.e., 536292964 + 134073241 = 23158^2 + 11579^2 .

It is not a de Polignac number, because 670366205 - 2⁶ = 670366141 is a prime.

It is a super-2 number, since 2×670366205² = 898781697612204050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52106 + ... + 63684.

It is an arithmetic number, because the mean of its divisors is an integer number (134084821).

Almost surely, 2^670366205 is an apocalyptic number.

It is an amenable number.

670366205 is a deficient number, since it is larger than the sum of its proper divisors (134142721).

670366205 is an frugal number, since it uses more digits than its factorization.

670366205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23163 (or 11584 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 670366205 is about 25891.4311114701. The cubic root of 670366205 is about 875.1934070427.

The spelling of 670366205 in words is "six hundred seventy million, three hundred sixty-six thousand, two hundred five".