83921353 has 4 divisors (see below), whose sum is σ = 84208068. Its totient is φ = 83634640.

The previous prime is 83921339. The next prime is 83921359. The reversal of 83921353 is 35312938.

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

It can be written as a sum of positive squares in 2 ways, for example, as 82210489 + 1710864 = 9067^2 + 1308^2 .

It is a cyclic number.

It is not a de Polignac number, because 83921353 - 2¹⁷ = 83790281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83921359) 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, 142918 + ... + 143503.

It is an arithmetic number, because the mean of its divisors is an integer number (21052017).

Almost surely, 2^83921353 is an apocalyptic number.

It is an amenable number.

83921353 is a deficient number, since it is larger than the sum of its proper divisors (286715).

83921353 is a wasteful number, since it uses less digits than its factorization.

83921353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286714.

The product of its digits is 19440, while the sum is 34.

The square root of 83921353 is about 9160.8598395565. The cubic root of 83921353 is about 437.8151903407.

The spelling of 83921353 in words is "eighty-three million, nine hundred twenty-one thousand, three hundred fifty-three".