853523990 has 16 divisors (see below), whose sum is σ = 1676010960. Its totient is φ = 310372320.

The previous prime is 853523989. The next prime is 853523999. The reversal of 853523990 is 99325358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853523999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3879545 + ... + 3879764.

It is an arithmetic number, because the mean of its divisors is an integer number (104750685).

Almost surely, 2^853523990 is an apocalyptic number.

853523990 is a deficient number, since it is larger than the sum of its proper divisors (822486970).

853523990 is a wasteful number, since it uses less digits than its factorization.

853523990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7759327.

The product of its (nonzero) digits is 291600, while the sum is 44.

The square root of 853523990 is about 29215.1328937590. The cubic root of 853523990 is about 948.5755160851.

The spelling of 853523990 in words is "eight hundred fifty-three million, five hundred twenty-three thousand, nine hundred ninety".