670071072 has 96 divisors (see below), whose sum is σ = 1929178944. Its totient is φ = 201958400.

The previous prime is 670071049. The next prime is 670071079. The reversal of 670071072 is 270170076.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (670071079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206422 + ... + 209642.

It is an arithmetic number, because the mean of its divisors is an integer number (20095614).

Almost surely, 2^670071072 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 670071072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (964589472).

670071072 is an abundant number, since it is smaller than the sum of its proper divisors (1259107872).

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

670071072 is a wasteful number, since it uses less digits than its factorization.

670071072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3442 (or 3434 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 30.

The square root of 670071072 is about 25885.7310501365. The cubic root of 670071072 is about 875.0649516955.

The spelling of 670071072 in words is "six hundred seventy million, seventy-one thousand, seventy-two".