83428345 has 64 divisors (see below), whose sum is σ = 136765440. Its totient is φ = 47174400.

The previous prime is 83428321. The next prime is 83428361. The reversal of 83428345 is 54382438.

It is not a de Polignac number, because 83428345 - 2⁵ = 83428313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 395290 + ... + 395500.

It is an arithmetic number, because the mean of its divisors is an integer number (2136960).

Almost surely, 2^83428345 is an apocalyptic number.

It is an amenable number.

83428345 is a deficient number, since it is larger than the sum of its proper divisors (53337095).

83428345 is a wasteful number, since it uses less digits than its factorization.

83428345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326.

The product of its digits is 92160, while the sum is 37.

The square root of 83428345 is about 9133.9118125806. The cubic root of 83428345 is about 436.9561699919.

The spelling of 83428345 in words is "eighty-three million, four hundred twenty-eight thousand, three hundred forty-five".