83803965 has 96 divisors (see below), whose sum is σ = 174337920. Its totient is φ = 34062336.

The previous prime is 83803963. The next prime is 83803981. The reversal of 83803965 is 56930838.

It is not a de Polignac number, because 83803965 - 2¹ = 83803963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83803963) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 237229 + ... + 237581.

It is an arithmetic number, because the mean of its divisors is an integer number (1816020).

Almost surely, 2^83803965 is an apocalyptic number.

83803965 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

83803965 is an abundant number, since it is smaller than the sum of its proper divisors (90533955).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83803965 is a wasteful number, since it uses less digits than its factorization.

83803965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 83803965 is about 9154.4505569695. The cubic root of 83803965 is about 437.6109585230.

The spelling of 83803965 in words is "eighty-three million, eight hundred three thousand, nine hundred sixty-five".