84708397 has 8 divisors (see below), whose sum is σ = 86726520. Its totient is φ = 82713600.

The previous prime is 84708383. The next prime is 84708401. The reversal of 84708397 is 79380748.

It can be written as a sum of positive squares in 4 ways, for example, as 24940036 + 59768361 = 4994^2 + 7731^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84708397 - 2⁷ = 84708269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84708307) 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 7 ways as a sum of consecutive naturals, for example, 1629 + ... + 13117.

It is an arithmetic number, because the mean of its divisors is an integer number (10840815).

Almost surely, 2^84708397 is an apocalyptic number.

It is an amenable number.

84708397 is a deficient number, since it is larger than the sum of its proper divisors (2018123).

84708397 is a wasteful number, since it uses less digits than its factorization.

84708397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11663.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 84708397 is about 9203.7164775975. The cubic root of 84708397 is about 439.1795955724.

The spelling of 84708397 in words is "eighty-four million, seven hundred eight thousand, three hundred ninety-seven".