83269021 has 4 divisors (see below), whose sum is σ = 90838944. Its totient is φ = 75699100.

The previous prime is 83269019. The next prime is 83269031. The reversal of 83269021 is 12096238.

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 83269021 - 2¹ = 83269019 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 (83269031) 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, 3784945 + ... + 3784966.

It is an arithmetic number, because the mean of its divisors is an integer number (22709736).

Almost surely, 2^83269021 is an apocalyptic number.

It is an amenable number.

83269021 is a deficient number, since it is larger than the sum of its proper divisors (7569923).

83269021 is a wasteful number, since it uses less digits than its factorization.

83269021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7569922.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 83269021 is about 9125.1860802945. The cubic root of 83269021 is about 436.6778394541.

The spelling of 83269021 in words is "eighty-three million, two hundred sixty-nine thousand, twenty-one".