83620838 has 8 divisors (see below), whose sum is σ = 143350032. Its totient is φ = 35837496.

The previous prime is 83620819. The next prime is 83620883. The reversal of 83620838 is 83802638.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2986445 + ... + 2986472.

It is an arithmetic number, because the mean of its divisors is an integer number (17918754).

Almost surely, 2^83620838 is an apocalyptic number.

83620838 is a deficient number, since it is larger than the sum of its proper divisors (59729194).

83620838 is a wasteful number, since it uses less digits than its factorization.

83620838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5972926.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 83620838 is about 9144.4430120155. The cubic root of 83620838 is about 437.2919727196.

The spelling of 83620838 in words is "eighty-three million, six hundred twenty thousand, eight hundred thirty-eight".