83352021 has 4 divisors (see below), whose sum is σ = 111136032. Its totient is φ = 55568012.

The previous prime is 83352013. The next prime is 83352053. The reversal of 83352021 is 12025338.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83352021 - 2³ = 83352013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83351982 and 83352000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83352001) 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, 13892001 + ... + 13892006.

It is an arithmetic number, because the mean of its divisors is an integer number (27784008).

Almost surely, 2^83352021 is an apocalyptic number.

It is an amenable number.

83352021 is a deficient number, since it is larger than the sum of its proper divisors (27784011).

83352021 is a wasteful number, since it uses less digits than its factorization.

83352021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27784010.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 83352021 is about 9129.7328000331. The cubic root of 83352021 is about 436.8228802889.

Adding to 83352021 its reverse (12025338), we get a palindrome (95377359).

The spelling of 83352021 in words is "eighty-three million, three hundred fifty-two thousand, twenty-one".