83875945 has 16 divisors (see below), whose sum is σ = 103494672. Its totient is φ = 65228800.

The previous prime is 83875933. The next prime is 83875949. The reversal of 83875945 is 54957838.

It can be written as a sum of positive squares in 8 ways, for example, as 6295081 + 77580864 = 2509^2 + 8808^2 .

It is not a de Polignac number, because 83875945 - 2⁷ = 83875817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83875949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28545 + ... + 31345.

It is an arithmetic number, because the mean of its divisors is an integer number (6468417).

Almost surely, 2^83875945 is an apocalyptic number.

It is an amenable number.

83875945 is a deficient number, since it is larger than the sum of its proper divisors (19618727).

83875945 is a wasteful number, since it uses less digits than its factorization.

83875945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2972.

The product of its digits is 1209600, while the sum is 49.

The square root of 83875945 is about 9158.3811342398. The cubic root of 83875945 is about 437.7362120349.

The spelling of 83875945 in words is "eighty-three million, eight hundred seventy-five thousand, nine hundred forty-five".