853447641 has 12 divisors (see below), whose sum is σ = 1178525712. Its totient is φ = 549343984.

The previous prime is 853447633. The next prime is 853447649. The reversal of 853447641 is 146744358.

It is an interprime number because it is at equal distance from previous prime (853447633) and next prime (853447649).

It is not a de Polignac number, because 853447641 - 2³ = 853447633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 853447593 and 853447602.

It is not an unprimeable number, because it can be changed into a prime (853447649) 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, 166611 + ... + 171656.

It is an arithmetic number, because the mean of its divisors is an integer number (98210476).

Almost surely, 2^853447641 is an apocalyptic number.

It is an amenable number.

853447641 is a deficient number, since it is larger than the sum of its proper divisors (325078071).

853447641 is a wasteful number, since it uses less digits than its factorization.

853447641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338328 (or 338299 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The square root of 853447641 is about 29213.8261958272. The cubic root of 853447641 is about 948.5472314079.

The spelling of 853447641 in words is "eight hundred fifty-three million, four hundred forty-seven thousand, six hundred forty-one".