83403845 has 16 divisors (see below), whose sum is σ = 114551040. Its totient is φ = 57106944.

The previous prime is 83403839. The next prime is 83403847. The reversal of 83403845 is 54830438.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 83403845 - 2²² = 79209541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83403847) 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, 30869 + ... + 33461.

It is an arithmetic number, because the mean of its divisors is an integer number (7159440).

Almost surely, 2^83403845 is an apocalyptic number.

It is an amenable number.

83403845 is a deficient number, since it is larger than the sum of its proper divisors (31147195).

83403845 is a wasteful number, since it uses less digits than its factorization.

83403845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3524.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 83403845 is about 9132.5705581725. The cubic root of 83403845 is about 436.9133928667.

It can be divided in two parts, 83403 and 845, that added together give a palindrome (84248).

The spelling of 83403845 in words is "eighty-three million, four hundred three thousand, eight hundred forty-five".