83818418 has 4 divisors (see below), whose sum is σ = 125727630. Its totient is φ = 41909208.

The previous prime is 83818393. The next prime is 83818429. The reversal of 83818418 is 81481838.

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

It can be written as a sum of positive squares in only one way, i.e., 69172489 + 14645929 = 8317^2 + 3827^2 .

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 as a sum of consecutive naturals, namely, 20954603 + ... + 20954606.

Almost surely, 2^83818418 is an apocalyptic number.

83818418 is a deficient number, since it is larger than the sum of its proper divisors (41909212).

83818418 is a wasteful number, since it uses less digits than its factorization.

83818418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41909211.

The product of its digits is 49152, while the sum is 41.

The square root of 83818418 is about 9155.2399203953. The cubic root of 83818418 is about 437.6361141650.

The spelling of 83818418 in words is "eighty-three million, eight hundred eighteen thousand, four hundred eighteen".