853979490 has 128 divisors (see below), whose sum is σ = 2802885120. Its totient is φ = 180175104.

The previous prime is 853979461. The next prime is 853979549. The reversal of 853979490 is 94979358.

853979490 is a `hidden beast` number, since 85 + 3 + 9 + 79 + 490 = 666.

853979490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7192 + ... + 41948.

It is an arithmetic number, because the mean of its divisors is an integer number (21897540).

Almost surely, 2^853979490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 853979490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1401442560).

853979490 is an abundant number, since it is smaller than the sum of its proper divisors (1948905630).

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

853979490 is a wasteful number, since it uses less digits than its factorization.

853979490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34793 (or 34787 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 54.

The square root of 853979490 is about 29222.9274714222. The cubic root of 853979490 is about 948.7442281203.

The spelling of 853979490 in words is "eight hundred fifty-three million, nine hundred seventy-nine thousand, four hundred ninety".