853236390 has 16 divisors (see below), whose sum is σ = 2047767408. Its totient is φ = 227529696.

The previous prime is 853236389. The next prime is 853236407. The reversal of 853236390 is 93632358.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14220577 + ... + 14220636.

It is an arithmetic number, because the mean of its divisors is an integer number (127985463).

Almost surely, 2^853236390 is an apocalyptic number.

853236390 is an abundant number, since it is smaller than the sum of its proper divisors (1194531018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

853236390 is a wasteful number, since it uses less digits than its factorization.

853236390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28441223.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 853236390 is about 29210.2103724023. The cubic root of 853236390 is about 948.4689613899.

The spelling of 853236390 in words is "eight hundred fifty-three million, two hundred thirty-six thousand, three hundred ninety".