848640881 has 6 divisors (see below), whose sum is σ = 932803746. Its totient is φ = 771491600.

The previous prime is 848640869. The next prime is 848640893. The reversal of 848640881 is 188046848.

It is an interprime number because it is at equal distance from previous prime (848640869) and next prime (848640893).

It can be written as a sum of positive squares in only one way, i.e., 464833600 + 383807281 = 21560^2 + 19591^2 .

It is not a de Polignac number, because 848640881 - 2¹⁸ = 848378737 is a prime.

It is a super-2 number, since 2×848640881² = 1440382689808912322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (848640811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3506660 + ... + 3506901.

It is an arithmetic number, because the mean of its divisors is an integer number (155467291).

Almost surely, 2^848640881 is an apocalyptic number.

It is an amenable number.

848640881 is a deficient number, since it is larger than the sum of its proper divisors (84162865).

848640881 is a wasteful number, since it uses less digits than its factorization.

848640881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7013583 (or 7013572 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 47.

The square root of 848640881 is about 29131.4414507762. The cubic root of 848640881 is about 946.7630853958.

The spelling of 848640881 in words is "eight hundred forty-eight million, six hundred forty thousand, eight hundred eighty-one".