856006604 has 12 divisors (see below), whose sum is σ = 1526276304. Its totient is φ = 419927664.

The previous prime is 856006603. The next prime is 856006607. The reversal of 856006604 is 406600658.

It is a super-2 number, since 2×856006604² = 1465494612183225632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (856006603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2018672 + ... + 2019095.

It is an arithmetic number, because the mean of its divisors is an integer number (127189692).

Almost surely, 2^856006604 is an apocalyptic number.

It is an amenable number.

856006604 is a deficient number, since it is larger than the sum of its proper divisors (670269700).

856006604 is a wasteful number, since it uses less digits than its factorization.

856006604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037824 (or 4037822 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 856006604 is about 29257.5905364745. The cubic root of 856006604 is about 949.4943214602.

The spelling of 856006604 in words is "eight hundred fifty-six million, six thousand, six hundred four".