84308069 has 4 divisors (see below), whose sum is σ = 84628896. Its totient is φ = 83987244.

The previous prime is 84308053. The next prime is 84308093. The reversal of 84308069 is 96080348.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84308069 - 2⁴ = 84308053 is a prime.

It is a super-2 number, since 2×84308069² = 14215700997017522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84308099) 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, 160019 + ... + 160544.

It is an arithmetic number, because the mean of its divisors is an integer number (21157224).

Almost surely, 2^84308069 is an apocalyptic number.

It is an amenable number.

84308069 is a deficient number, since it is larger than the sum of its proper divisors (320827).

84308069 is a wasteful number, since it uses less digits than its factorization.

84308069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320826.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 84308069 is about 9181.9425504628. The cubic root of 84308069 is about 438.4866552784.

The spelling of 84308069 in words is "eighty-four million, three hundred eight thousand, sixty-nine".