670022665 has 8 divisors (see below), whose sum is σ = 865875528. Its totient is φ = 494785920.

The previous prime is 670022629. The next prime is 670022711. The reversal of 670022665 is 566220076.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 41209 + 669981456 = 203^2 + 25884^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 670022665 - 2⁹ = 670022153 is a prime.

It is a super-2 number, since 2×670022665² = 897860743227404450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 670022665.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5153956 + ... + 5154085.

It is an arithmetic number, because the mean of its divisors is an integer number (108234441).

Almost surely, 2^670022665 is an apocalyptic number.

670022665 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

670022665 is a deficient number, since it is larger than the sum of its proper divisors (195852863).

670022665 is a wasteful number, since it uses less digits than its factorization.

670022665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10308059.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 670022665 is about 25884.7960200578. The cubic root of 670022665 is about 875.0438791601.

The spelling of 670022665 in words is "six hundred seventy million, twenty-two thousand, six hundred sixty-five".