852421536 has 48 divisors (see below), whose sum is σ = 2486232000. Its totient is φ = 284140224.

The previous prime is 852421499. The next prime is 852421573. The reversal of 852421536 is 635124258.

852421536 is a `hidden beast` number, since 85 + 2 + 42 + 1 + 536 = 666.

It is an interprime number because it is at equal distance from previous prime (852421499) and next prime (852421573).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 852421536.

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, 492436 + ... + 494163.

It is an arithmetic number, because the mean of its divisors is an integer number (51796500).

Almost surely, 2^852421536 is an apocalyptic number.

It is an amenable number.

852421536 is an abundant number, since it is smaller than the sum of its proper divisors (1633810464).

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

852421536 is a wasteful number, since it uses less digits than its factorization.

852421536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986618 (or 986604 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 852421536 is about 29196.2589384325. The cubic root of 852421536 is about 948.1669310268.

The spelling of 852421536 in words is "eight hundred fifty-two million, four hundred twenty-one thousand, five hundred thirty-six".