84011405 has 16 divisors (see below), whose sum is σ = 104734080. Its totient is φ = 64615488.

The previous prime is 84011401. The next prime is 84011429. The reversal of 84011405 is 50411048.

It is a cyclic number.

It is not a de Polignac number, because 84011405 - 2² = 84011401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84011401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37034 + ... + 39236.

It is an arithmetic number, because the mean of its divisors is an integer number (6545880).

Almost surely, 2^84011405 is an apocalyptic number.

It is an amenable number.

84011405 is a deficient number, since it is larger than the sum of its proper divisors (20722675).

84011405 is a wasteful number, since it uses less digits than its factorization.

84011405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 84011405 is about 9165.7735625532. The cubic root of 84011405 is about 437.9717338917.

The spelling of 84011405 in words is "eighty-four million, eleven thousand, four hundred five".