84851538 has 16 divisors (see below), whose sum is σ = 169796736. Its totient is φ = 28268240.

The previous prime is 84851537. The next prime is 84851551. The reversal of 84851538 is 83515848.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 84851538.

It is not an unprimeable number, because it can be changed into a prime (84851537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14695 + ... + 19637.

It is an arithmetic number, because the mean of its divisors is an integer number (10612296).

Almost surely, 2^84851538 is an apocalyptic number.

84851538 is an abundant number, since it is smaller than the sum of its proper divisors (84945198).

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

84851538 is a wasteful number, since it uses less digits than its factorization.

84851538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7809.

The product of its digits is 153600, while the sum is 42.

The square root of 84851538 is about 9211.4894561086. The cubic root of 84851538 is about 439.4268328877.

The spelling of 84851538 in words is "eighty-four million, eight hundred fifty-one thousand, five hundred thirty-eight".