83744638 has 8 divisors (see below), whose sum is σ = 125811288. Its totient is φ = 41807544.

The previous prime is 83744623. The next prime is 83744641. The reversal of 83744638 is 83644738.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 83744594 and 83744603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30756 + ... + 33367.

It is an arithmetic number, because the mean of its divisors is an integer number (15726411).

Almost surely, 2^83744638 is an apocalyptic number.

83744638 is a deficient number, since it is larger than the sum of its proper divisors (42066650).

83744638 is a wasteful number, since it uses less digits than its factorization.

83744638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64778.

The product of its digits is 387072, while the sum is 43.

The square root of 83744638 is about 9151.2096468172. The cubic root of 83744638 is about 437.5076687635.

The spelling of 83744638 in words is "eighty-three million, seven hundred forty-four thousand, six hundred thirty-eight".