83645382 has 32 divisors (see below), whose sum is σ = 172373472. Its totient is φ = 27039744.

The previous prime is 83645357. The next prime is 83645407. The reversal of 83645382 is 28354638.

It is an interprime number because it is at equal distance from previous prime (83645357) and next prime (83645407).

It is a self number, because there is not a number n which added to its sum of digits gives 83645382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127768 + ... + 128420.

It is an arithmetic number, because the mean of its divisors is an integer number (5386671).

Almost surely, 2^83645382 is an apocalyptic number.

83645382 is an abundant number, since it is smaller than the sum of its proper divisors (88728090).

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

83645382 is a wasteful number, since it uses less digits than its factorization.

83645382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272.

The product of its digits is 138240, while the sum is 39.

The square root of 83645382 is about 9145.7849307755. The cubic root of 83645382 is about 437.3347525040.

The spelling of 83645382 in words is "eighty-three million, six hundred forty-five thousand, three hundred eighty-two".