83921453 has 16 divisors (see below), whose sum is σ = 106197504. Its totient is φ = 64413360.

The previous prime is 83921443. The next prime is 83921471. The reversal of 83921453 is 35412938.

It is not a de Polignac number, because 83921453 - 2⁴ = 83921437 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83921443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2975 + ... + 13292.

It is an arithmetic number, because the mean of its divisors is an integer number (6637344).

Almost surely, 2^83921453 is an apocalyptic number.

It is an amenable number.

83921453 is a deficient number, since it is larger than the sum of its proper divisors (22276051).

83921453 is a wasteful number, since it uses less digits than its factorization.

83921453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16352.

The product of its digits is 25920, while the sum is 35.

The square root of 83921453 is about 9160.8652975579. The cubic root of 83921453 is about 437.8153642396.

The spelling of 83921453 in words is "eighty-three million, nine hundred twenty-one thousand, four hundred fifty-three".