847149028 has 48 divisors (see below), whose sum is σ = 1673699328. Its totient is φ = 371700000.

The previous prime is 847149019. The next prime is 847149031. The reversal of 847149028 is 820941748.

It is a super-2 number, since 2×847149028² = 1435322951282689568, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1023951 + ... + 1024777.

It is an arithmetic number, because the mean of its divisors is an integer number (34868736).

Almost surely, 2^847149028 is an apocalyptic number.

It is an amenable number.

847149028 is a deficient number, since it is larger than the sum of its proper divisors (826550300).

847149028 is a wasteful number, since it uses less digits than its factorization.

847149028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624 (or 1622 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 847149028 is about 29105.8246404392. The cubic root of 847149028 is about 946.2079782659.

The spelling of 847149028 in words is "eight hundred forty-seven million, one hundred forty-nine thousand, twenty-eight".