841638648 has 16 divisors (see below), whose sum is σ = 2104096680. Its totient is φ = 280546208.

The previous prime is 841638643. The next prime is 841638653. The reversal of 841638648 is 846836148.

It is an interprime number because it is at equal distance from previous prime (841638643) and next prime (841638653).

It is a super-2 number, since 2×841638648² = 1416711227614535808, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 841638597 and 841638606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (841638643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17534115 + ... + 17534162.

Almost surely, 2^841638648 is an apocalyptic number.

It is an amenable number.

841638648 is an abundant number, since it is smaller than the sum of its proper divisors (1262458032).

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

841638648 is a wasteful number, since it uses less digits than its factorization.

841638648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35068286 (or 35068282 counting only the distinct ones).

The product of its digits is 884736, while the sum is 48.

The square root of 841638648 is about 29011.0090827603. The cubic root of 841638648 is about 944.1519403762.

The spelling of 841638648 in words is "eight hundred forty-one million, six hundred thirty-eight thousand, six hundred forty-eight".