847149648 has 40 divisors (see below), whose sum is σ = 2259069696. Its totient is φ = 273273600.

The previous prime is 847149643. The next prime is 847149673. The reversal of 847149648 is 846941748.

It is a super-2 number, since 2×847149648² = 1435325052213047808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 847149648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (847149643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283173 + ... + 286148.

Almost surely, 2^847149648 is an apocalyptic number.

It is an amenable number.

847149648 is an abundant number, since it is smaller than the sum of its proper divisors (1411920048).

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

847149648 is a wasteful number, since it uses less digits than its factorization.

847149648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569363 (or 569357 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 51.

The square root of 847149648 is about 29105.8352912264. The cubic root of 847149648 is about 946.2082090985.

The spelling of 847149648 in words is "eight hundred forty-seven million, one hundred forty-nine thousand, six hundred forty-eight".