83803421 has 16 divisors (see below), whose sum is σ = 99719424. Its totient is φ = 69636864.

The previous prime is 83803393. The next prime is 83803427. The reversal of 83803421 is 12430838.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 83803421 - 2¹⁸ = 83541277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83803427) 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, 3161 + ... + 13326.

It is an arithmetic number, because the mean of its divisors is an integer number (6232464).

Almost surely, 2^83803421 is an apocalyptic number.

It is an amenable number.

83803421 is a deficient number, since it is larger than the sum of its proper divisors (15916003).

83803421 is a wasteful number, since it uses less digits than its factorization.

83803421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16540.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 83803421 is about 9154.4208445974. The cubic root of 83803421 is about 437.6100116272.

The spelling of 83803421 in words is "eighty-three million, eight hundred three thousand, four hundred twenty-one".