84326399 has 4 divisors (see below), whose sum is σ = 85755720. Its totient is φ = 82897080.

The previous prime is 84326371. The next prime is 84326419. The reversal of 84326399 is 99362348.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84326399 is a prime.

It is a super-2 number, since 2×84326399² = 14221883136614402, 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 (84326329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714572 + ... + 714689.

It is an arithmetic number, because the mean of its divisors is an integer number (21438930).

Almost surely, 2^84326399 is an apocalyptic number.

84326399 is a deficient number, since it is larger than the sum of its proper divisors (1429321).

84326399 is a wasteful number, since it uses less digits than its factorization.

84326399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429320.

The product of its digits is 279936, while the sum is 44.

The square root of 84326399 is about 9182.9406510115. The cubic root of 84326399 is about 438.5184311138.

The spelling of 84326399 in words is "eighty-four million, three hundred twenty-six thousand, three hundred ninety-nine".