857544748 has 12 divisors (see below), whose sum is σ = 1502905320. Its totient is φ = 428143232.

The previous prime is 857544739. The next prime is 857544749. The reversal of 857544748 is 847445758.

It is a junction number, because it is equal to n+sod(n) for n = 857544695 and 857544704.

It is not an unprimeable number, because it can be changed into a prime (857544749) 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 3 ways as a sum of consecutive naturals, for example, 154213 + ... + 159676.

It is an arithmetic number, because the mean of its divisors is an integer number (125242110).

Almost surely, 2^857544748 is an apocalyptic number.

It is an amenable number.

857544748 is a deficient number, since it is larger than the sum of its proper divisors (645360572).

857544748 is a wasteful number, since it uses less digits than its factorization.

857544748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314576 (or 314574 counting only the distinct ones).

The product of its digits is 5017600, while the sum is 52.

The square root of 857544748 is about 29283.8649771508. The cubic root of 857544748 is about 950.0626913384.

The spelling of 857544748 in words is "eight hundred fifty-seven million, five hundred forty-four thousand, seven hundred forty-eight".