853971930 has 64 divisors (see below), whose sum is σ = 2602586880. Its totient is φ = 195193152.

The previous prime is 853971917. The next prime is 853971949. The reversal of 853971930 is 39179358.

It is a happy number.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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

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 31 ways as a sum of consecutive naturals, for example, 224029 + ... + 227808.

It is an arithmetic number, because the mean of its divisors is an integer number (40665420).

Almost surely, 2^853971930 is an apocalyptic number.

853971930 is an abundant number, since it is smaller than the sum of its proper divisors (1748614950).

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

853971930 is a wasteful number, since it uses less digits than its factorization.

853971930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451860 (or 451854 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 853971930 is about 29222.7981206455. The cubic root of 853971930 is about 948.7414284717.

The spelling of 853971930 in words is "eight hundred fifty-three million, nine hundred seventy-one thousand, nine hundred thirty".