856697338 has 16 divisors (see below), whose sum is σ = 1515999744. Its totient is φ = 355312080.

The previous prime is 856697333. The next prime is 856697351. The reversal of 856697338 is 833796658.

It is not an unprimeable number, because it can be changed into a prime (856697333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 986545 + ... + 987412.

It is an arithmetic number, because the mean of its divisors is an integer number (94749984).

Almost surely, 2^856697338 is an apocalyptic number.

856697338 is a deficient number, since it is larger than the sum of its proper divisors (659302406).

856697338 is a wasteful number, since it uses less digits than its factorization.

856697338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973997.

The product of its digits is 6531840, while the sum is 55.

The square root of 856697338 is about 29269.3925116324. The cubic root of 856697338 is about 949.7496433544.

The spelling of 856697338 in words is "eight hundred fifty-six million, six hundred ninety-seven thousand, three hundred thirty-eight".