83816123 has 4 divisors (see below), whose sum is σ = 83876448. Its totient is φ = 83755800.

The previous prime is 83816113. The next prime is 83816141. The reversal of 83816123 is 32161838.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32161838 = 2 ⋅16080919.

It is a cyclic number.

It is not a de Polignac number, because 83816123 - 2⁴ = 83816107 is a prime.

It is a super-2 number, since 2×83816123² = 14050284949502258, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83816123.

It is not an unprimeable number, because it can be changed into a prime (83816113) 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, 28028 + ... + 30873.

It is an arithmetic number, because the mean of its divisors is an integer number (20969112).

Almost surely, 2^83816123 is an apocalyptic number.

83816123 is a deficient number, since it is larger than the sum of its proper divisors (60325).

83816123 is a wasteful number, since it uses less digits than its factorization.

83816123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60324.

The product of its digits is 6912, while the sum is 32.

The square root of 83816123 is about 9155.1145814785. The cubic root of 83816123 is about 437.6321198796.

It can be divided in two parts, 838 and 16123, that added together give a palindrome (16961).

The spelling of 83816123 in words is "eighty-three million, eight hundred sixteen thousand, one hundred twenty-three".