853920506 has 16 divisors (see below), whose sum is σ = 1357620264. Its totient is φ = 401432064.

The previous prime is 853920499. The next prime is 853920541. The reversal of 853920506 is 605029358.

It can be written as a sum of positive squares in 4 ways, for example, as 779805625 + 74114881 = 27925^2 + 8609^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 853920506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22046 + ... + 46838.

Almost surely, 2^853920506 is an apocalyptic number.

853920506 is a deficient number, since it is larger than the sum of its proper divisors (503699758).

853920506 is a wasteful number, since it uses less digits than its factorization.

853920506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25825.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 853920506 is about 29221.9182464122. The cubic root of 853920506 is about 948.7223844973.

The spelling of 853920506 in words is "eight hundred fifty-three million, nine hundred twenty thousand, five hundred six".