84001395 has 32 divisors (see below), whose sum is σ = 137491200. Its totient is φ = 43784064.

The previous prime is 84001387. The next prime is 84001399. The reversal of 84001395 is 59310048.

It is not a de Polignac number, because 84001395 - 2³ = 84001387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84001399) 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 31 ways as a sum of consecutive naturals, for example, 135396 + ... + 136014.

It is an arithmetic number, because the mean of its divisors is an integer number (4296600).

Almost surely, 2^84001395 is an apocalyptic number.

84001395 is a deficient number, since it is larger than the sum of its proper divisors (53489805).

84001395 is a wasteful number, since it uses less digits than its factorization.

84001395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 84001395 is about 9165.2274930849. The cubic root of 84001395 is about 437.9543383520.

The spelling of 84001395 in words is "eighty-four million, one thousand, three hundred ninety-five".