83481851 has 4 divisors (see below), whose sum is σ = 84625512. Its totient is φ = 82338192.

The previous prime is 83481833. The next prime is 83481859. The reversal of 83481851 is 15818438.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15818438 = 2 ⋅7909219.

It is a cyclic number.

It is not a de Polignac number, because 83481851 - 2⁶ = 83481787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83481859) 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, 571721 + ... + 571866.

It is an arithmetic number, because the mean of its divisors is an integer number (21156378).

Almost surely, 2^83481851 is an apocalyptic number.

83481851 is a deficient number, since it is larger than the sum of its proper divisors (1143661).

83481851 is a wasteful number, since it uses less digits than its factorization.

83481851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143660.

The product of its digits is 30720, while the sum is 38.

The square root of 83481851 is about 9136.8403181844. The cubic root of 83481851 is about 437.0495626331.

The spelling of 83481851 in words is "eighty-three million, four hundred eighty-one thousand, eight hundred fifty-one".