84851365 has 4 divisors (see below), whose sum is σ = 101821644. Its totient is φ = 67881088.

The previous prime is 84851339. The next prime is 84851387. The reversal of 84851365 is 56315848.

84851365 = 6513² + 6514².

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42419169 + 42432196 = 6513^2 + 6514^2 .

It is a cyclic number.

It is not a de Polignac number, because 84851365 - 2¹⁹ = 84327077 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8485132 + ... + 8485141.

It is an arithmetic number, because the mean of its divisors is an integer number (25455411).

Almost surely, 2^84851365 is an apocalyptic number.

84851365 is the 6514-th centered square number.

It is an amenable number.

84851365 is a deficient number, since it is larger than the sum of its proper divisors (16970279).

84851365 is a wasteful number, since it uses less digits than its factorization.

84851365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16970278.

The product of its digits is 115200, while the sum is 40.

The square root of 84851365 is about 9211.4800656572. The cubic root of 84851365 is about 439.4265342450.

The spelling of 84851365 in words is "eighty-four million, eight hundred fifty-one thousand, three hundred sixty-five".