83619838 has 12 divisors (see below), whose sum is σ = 133242912. Its totient is φ = 39350240.

The previous prime is 83619793. The next prime is 83619839. The reversal of 83619838 is 83891638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83619839) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71758 + ... + 72913.

It is an arithmetic number, because the mean of its divisors is an integer number (11103576).

Almost surely, 2^83619838 is an apocalyptic number.

83619838 is a deficient number, since it is larger than the sum of its proper divisors (49623074).

83619838 is a wasteful number, since it uses less digits than its factorization.

83619838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144707 (or 144690 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 83619838 is about 9144.3883338362. The cubic root of 83619838 is about 437.2902295588.

The spelling of 83619838 in words is "eighty-three million, six hundred nineteen thousand, eight hundred thirty-eight".