84137408 has 28 divisors (see below), whose sum is σ = 171477432. Its totient is φ = 40930560.

The previous prime is 84137407. The next prime is 84137413. The reversal of 84137408 is 80473148.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84137407) 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, 15398 + ... + 20133.

It is an arithmetic number, because the mean of its divisors is an integer number (6124194).

Almost surely, 2^84137408 is an apocalyptic number.

It is an amenable number.

84137408 is an abundant number, since it is smaller than the sum of its proper divisors (87340024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84137408 is a wasteful number, since it uses less digits than its factorization.

84137408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35580 (or 35570 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 84137408 is about 9172.6445477845. The cubic root of 84137408 is about 438.1905858661.

The spelling of 84137408 in words is "eighty-four million, one hundred thirty-seven thousand, four hundred eight".