849521064 has 32 divisors (see below), whose sum is σ = 2427203520. Its totient is φ = 242720256.

The previous prime is 849521063. The next prime is 849521087. The reversal of 849521064 is 460125948.

It is not an unprimeable number, because it can be changed into a prime (849521063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2528169 + ... + 2528504.

It is an arithmetic number, because the mean of its divisors is an integer number (75850110).

Almost surely, 2^849521064 is an apocalyptic number.

849521064 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

849521064 is an abundant number, since it is smaller than the sum of its proper divisors (1577682456).

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

849521064 is a wasteful number, since it uses less digits than its factorization.

849521064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5056689 (or 5056685 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 849521064 is about 29146.5446322544. The cubic root of 849521064 is about 947.0902896971.

The spelling of 849521064 in words is "eight hundred forty-nine million, five hundred twenty-one thousand, sixty-four".