83625287 has 4 divisors (see below), whose sum is σ = 83649240. Its totient is φ = 83601336.

The previous prime is 83625253. The next prime is 83625293. The reversal of 83625287 is 78252638.

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

It is a cyclic number.

It is not a de Polignac number, because 83625287 - 2¹² = 83621191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83625247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5612 + ... + 14097.

It is an arithmetic number, because the mean of its divisors is an integer number (20912310).

Almost surely, 2^83625287 is an apocalyptic number.

83625287 is a deficient number, since it is larger than the sum of its proper divisors (23953).

83625287 is a wasteful number, since it uses less digits than its factorization.

83625287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23952.

The product of its digits is 161280, while the sum is 41.

The square root of 83625287 is about 9144.6862712725. The cubic root of 83625287 is about 437.2997278739.

The spelling of 83625287 in words is "eighty-three million, six hundred twenty-five thousand, two hundred eighty-seven".