83521351 has 8 divisors (see below), whose sum is σ = 86225040. Its totient is φ = 80852352.

The previous prime is 83521343. The next prime is 83521381. The reversal of 83521351 is 15312538.

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

It is a cyclic number.

It is not a de Polignac number, because 83521351 - 2³ = 83521343 is a prime.

It is a pancake number, because a pancake can be divided into 83521351 parts by 12924 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83521381) 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 7 ways as a sum of consecutive naturals, for example, 3736 + ... + 13453.

It is an arithmetic number, because the mean of its divisors is an integer number (10778130).

Almost surely, 2^83521351 is an apocalyptic number.

83521351 is a deficient number, since it is larger than the sum of its proper divisors (2703689).

83521351 is a wasteful number, since it uses less digits than its factorization.

83521351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17345.

The product of its digits is 3600, while the sum is 28.

The square root of 83521351 is about 9139.0016413173. The cubic root of 83521351 is about 437.1184827456.

Adding to 83521351 its reverse (15312538), we get a palindrome (98833889).

The spelling of 83521351 in words is "eighty-three million, five hundred twenty-one thousand, three hundred fifty-one".