84936399 has 4 divisors (see below), whose sum is σ = 113248536. Its totient is φ = 56624264.

The previous prime is 84936391. The next prime is 84936409. The reversal of 84936399 is 99363948.

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

It is a cyclic number.

It is not a de Polignac number, because 84936399 - 2³ = 84936391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84936391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14156064 + ... + 14156069.

It is an arithmetic number, because the mean of its divisors is an integer number (28312134).

Almost surely, 2^84936399 is an apocalyptic number.

84936399 is a deficient number, since it is larger than the sum of its proper divisors (28312137).

84936399 is a wasteful number, since it uses less digits than its factorization.

84936399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28312136.

The product of its digits is 1259712, while the sum is 51.

The square root of 84936399 is about 9216.0945633169. The cubic root of 84936399 is about 439.5732760236.

The spelling of 84936399 in words is "eighty-four million, nine hundred thirty-six thousand, three hundred ninety-nine".