83625818 has 8 divisors (see below), whose sum is σ = 125477748. Its totient is φ = 41799904.

The previous prime is 83625811. The next prime is 83625827. The reversal of 83625818 is 81852638.

It can be written as a sum of positive squares in 2 ways, for example, as 81306289 + 2319529 = 9017^2 + 1523^2 .

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

It is not an unprimeable number, because it can be changed into a prime (83625811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8030 + ... + 15222.

Almost surely, 2^83625818 is an apocalyptic number.

83625818 is a deficient number, since it is larger than the sum of its proper divisors (41851930).

83625818 is a wasteful number, since it uses less digits than its factorization.

83625818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13008.

The product of its digits is 92160, while the sum is 41.

The square root of 83625818 is about 9144.7153044805. The cubic root of 83625818 is about 437.3006534538.

The spelling of 83625818 in words is "eighty-three million, six hundred twenty-five thousand, eight hundred eighteen".