83425849 has 4 divisors (see below), whose sum is σ = 89843236. Its totient is φ = 77008464.

The previous prime is 83425847. The next prime is 83425871. The reversal of 83425849 is 94852438.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41370624 + 42055225 = 6432^2 + 6485^2 .

It is not a de Polignac number, because 83425849 - 2¹ = 83425847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83425843) 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, 3208674 + ... + 3208699.

It is an arithmetic number, because the mean of its divisors is an integer number (22460809).

Almost surely, 2^83425849 is an apocalyptic number.

It is an amenable number.

83425849 is a deficient number, since it is larger than the sum of its proper divisors (6417387).

83425849 is a wasteful number, since it uses less digits than its factorization.

83425849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6417386.

The product of its digits is 276480, while the sum is 43.

The square root of 83425849 is about 9133.7751778769. The cubic root of 83425849 is about 436.9518123463.

The spelling of 83425849 in words is "eighty-three million, four hundred twenty-five thousand, eight hundred forty-nine".