852644970 has 24 divisors (see below), whose sum is σ = 2216877156. Its totient is φ = 227371968.

The previous prime is 852644963. The next prime is 852644971. The reversal of 852644970 is 79446258.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 850830561 + 1814409 = 29169^2 + 1347^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (852644971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4736827 + ... + 4737006.

Almost surely, 2^852644970 is an apocalyptic number.

852644970 is an abundant number, since it is smaller than the sum of its proper divisors (1364232186).

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

852644970 is a wasteful number, since it uses less digits than its factorization.

852644970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9473846 (or 9473843 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 852644970 is about 29200.0851026157. The cubic root of 852644970 is about 948.2497672816.

The spelling of 852644970 in words is "eight hundred fifty-two million, six hundred forty-four thousand, nine hundred seventy".