670774356 has 72 divisors (see below), whose sum is σ = 1942187520. Its totient is φ = 191215296.

The previous prime is 670774343. The next prime is 670774381. The reversal of 670774356 is 653477076.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 117930 + ... + 123486.

Almost surely, 2^670774356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670774356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (971093760).

670774356 is an abundant number, since it is smaller than the sum of its proper divisors (1271413164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670774356 is a wasteful number, since it uses less digits than its factorization.

670774356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6053 (or 6048 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 45.

The square root of 670774356 is about 25899.3118827509. The cubic root of 670774356 is about 875.3709908720.

The spelling of 670774356 in words is "six hundred seventy million, seven hundred seventy-four thousand, three hundred fifty-six".