83828251 has 4 divisors (see below), whose sum is σ = 90276592. Its totient is φ = 77379912.

The previous prime is 83828249. The next prime is 83828267. The reversal of 83828251 is 15282838.

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 83828251 - 2¹ = 83828249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83828251.

It is not an unprimeable number, because it can be changed into a prime (83828281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3224151 + ... + 3224176.

It is an arithmetic number, because the mean of its divisors is an integer number (22569148).

Almost surely, 2^83828251 is an apocalyptic number.

83828251 is a deficient number, since it is larger than the sum of its proper divisors (6448341).

83828251 is a wasteful number, since it uses less digits than its factorization.

83828251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6448340.

The product of its digits is 30720, while the sum is 37.

The square root of 83828251 is about 9155.7769195192. The cubic root of 83828251 is about 437.6532269816.

The spelling of 83828251 in words is "eighty-three million, eight hundred twenty-eight thousand, two hundred fifty-one".