83128463 has 16 divisors (see below), whose sum is σ = 96249600. Its totient is φ = 71047680.

The previous prime is 83128447. The next prime is 83128489. The reversal of 83128463 is 36482138.

It is a happy number.

It is not a de Polignac number, because 83128463 - 2⁴ = 83128447 is a prime.

It is a super-3 number, since 3×83128463³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83128163) 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, 12143 + ... + 17711.

It is an arithmetic number, because the mean of its divisors is an integer number (6015600).

Almost surely, 2^83128463 is an apocalyptic number.

83128463 is a deficient number, since it is larger than the sum of its proper divisors (13121137).

83128463 is a wasteful number, since it uses less digits than its factorization.

83128463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5662.

The product of its digits is 27648, while the sum is 35.

The square root of 83128463 is about 9117.4811762899. The cubic root of 83128463 is about 436.4319971985.

The spelling of 83128463 in words is "eighty-three million, one hundred twenty-eight thousand, four hundred sixty-three".