670774245 has 16 divisors (see below), whose sum is σ = 1091430720. Its totient is φ = 351682304.

The previous prime is 670774217. The next prime is 670774259. The reversal of 670774245 is 542477076.

It is a cyclic number.

It is not a de Polignac number, because 670774245 - 2¹¹ = 670772197 is a prime.

It is a super-3 number, since 3×670774245³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 670774197 and 670774206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378084 + ... + 379853.

It is an arithmetic number, because the mean of its divisors is an integer number (68214420).

Almost surely, 2^670774245 is an apocalyptic number.

It is an amenable number.

670774245 is a deficient number, since it is larger than the sum of its proper divisors (420656475).

670774245 is a wasteful number, since it uses less digits than its factorization.

670774245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758004.

The product of its (nonzero) digits is 329280, while the sum is 42.

The square root of 670774245 is about 25899.3097398367. The cubic root of 670774245 is about 875.3709425864.

The spelling of 670774245 in words is "six hundred seventy million, seven hundred seventy-four thousand, two hundred forty-five".