83982638 has 4 divisors (see below), whose sum is σ = 125973960. Its totient is φ = 41991318.

The previous prime is 83982589. The next prime is 83982649. The reversal of 83982638 is 83628938.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 83982592 and 83982601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20995658 + ... + 20995661.

It is an arithmetic number, because the mean of its divisors is an integer number (31493490).

Almost surely, 2^83982638 is an apocalyptic number.

83982638 is a deficient number, since it is larger than the sum of its proper divisors (41991322).

83982638 is a wasteful number, since it uses less digits than its factorization.

83982638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41991321.

The product of its digits is 497664, while the sum is 47.

The square root of 83982638 is about 9164.2041662111. The cubic root of 83982638 is about 437.9217384131.

The spelling of 83982638 in words is "eighty-three million, nine hundred eighty-two thousand, six hundred thirty-eight".