83645423 has 8 divisors (see below), whose sum is σ = 88704720. Its totient is φ = 78601600.

The previous prime is 83645407. The next prime is 83645479. The reversal of 83645423 is 32454638.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83645423 - 2⁴ = 83645407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83645323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8408 + ... + 15426.

It is an arithmetic number, because the mean of its divisors is an integer number (11088090).

Almost surely, 2^83645423 is an apocalyptic number.

83645423 is a deficient number, since it is larger than the sum of its proper divisors (5059297).

83645423 is a wasteful number, since it uses less digits than its factorization.

83645423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7737.

The product of its digits is 69120, while the sum is 35.

The square root of 83645423 is about 9145.7871722449. The cubic root of 83645423 is about 437.3348239593.

The spelling of 83645423 in words is "eighty-three million, six hundred forty-five thousand, four hundred twenty-three".