83733638 has 4 divisors (see below), whose sum is σ = 125600460. Its totient is φ = 41866818.

The previous prime is 83733631. The next prime is 83733641. The reversal of 83733638 is 83633738.

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

It is a super-2 number, since 2×83733638² = 14022644265430088, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 83733595 and 83733604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83733631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20933408 + ... + 20933411.

It is an arithmetic number, because the mean of its divisors is an integer number (31400115).

Almost surely, 2^83733638 is an apocalyptic number.

83733638 is a deficient number, since it is larger than the sum of its proper divisors (41866822).

83733638 is a wasteful number, since it uses less digits than its factorization.

83733638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41866821.

The product of its digits is 217728, while the sum is 41.

The square root of 83733638 is about 9150.6086136388. The cubic root of 83733638 is about 437.4885121337.

The spelling of 83733638 in words is "eighty-three million, seven hundred thirty-three thousand, six hundred thirty-eight".