857245364 has 6 divisors (see below), whose sum is σ = 1500179394. Its totient is φ = 428622680.

The previous prime is 857245327. The next prime is 857245379. The reversal of 857245364 is 463542758.

It can be written as a sum of positive squares in only one way, i.e., 648211600 + 209033764 = 25460^2 + 14458^2 .

It is a super-2 number, since 2×857245364² = 1469739228198984992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 107155667 + ... + 107155674.

It is an arithmetic number, because the mean of its divisors is an integer number (250029899).

Almost surely, 2^857245364 is an apocalyptic number.

It is an amenable number.

857245364 is a deficient number, since it is larger than the sum of its proper divisors (642934030).

857245364 is a wasteful number, since it uses less digits than its factorization.

857245364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214311345 (or 214311343 counting only the distinct ones).

The product of its digits is 806400, while the sum is 44.

The square root of 857245364 is about 29278.7527739827. The cubic root of 857245364 is about 949.9521172542.

The spelling of 857245364 in words is "eight hundred fifty-seven million, two hundred forty-five thousand, three hundred sixty-four".