83424137 has 4 divisors (see below), whose sum is σ = 83660820. Its totient is φ = 83187456.

The previous prime is 83424127. The next prime is 83424169. The reversal of 83424137 is 73142438.

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

It can be written as a sum of positive squares in 2 ways, for example, as 56911936 + 26512201 = 7544^2 + 5149^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83424137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83424127) 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, 117812 + ... + 118517.

It is an arithmetic number, because the mean of its divisors is an integer number (20915205).

Almost surely, 2^83424137 is an apocalyptic number.

It is an amenable number.

83424137 is a deficient number, since it is larger than the sum of its proper divisors (236683).

83424137 is a wasteful number, since it uses less digits than its factorization.

83424137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236682.

The product of its digits is 16128, while the sum is 32.

The square root of 83424137 is about 9133.6814593022. The cubic root of 83424137 is about 436.9488233982.

The spelling of 83424137 in words is "eighty-three million, four hundred twenty-four thousand, one hundred thirty-seven".