857943748 has 6 divisors (see below), whose sum is σ = 1501401566. Its totient is φ = 428971872.

The previous prime is 857943739. The next prime is 857943761. The reversal of 857943748 is 847349758.

It can be written as a sum of positive squares in only one way, i.e., 564917824 + 293025924 = 23768^2 + 17118^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107242965 + ... + 107242972.

Almost surely, 2^857943748 is an apocalyptic number.

It is an amenable number.

857943748 is a deficient number, since it is larger than the sum of its proper divisors (643457818).

857943748 is a wasteful number, since it uses less digits than its factorization.

857943748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214485941 (or 214485939 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 55.

The square root of 857943748 is about 29290.6768102070. The cubic root of 857943748 is about 950.2100174644.

The spelling of 857943748 in words is "eight hundred fifty-seven million, nine hundred forty-three thousand, seven hundred forty-eight".