83249473 has 4 divisors (see below), whose sum is σ = 83986308. Its totient is φ = 82512640.

The previous prime is 83249449. The next prime is 83249521. The reversal of 83249473 is 37494238.

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 17833729 + 65415744 = 4223^2 + 8088^2 .

It is a cyclic number.

It is not a de Polignac number, because 83249473 - 2¹⁷ = 83118401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83249423) 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, 368248 + ... + 368473.

It is an arithmetic number, because the mean of its divisors is an integer number (20996577).

Almost surely, 2^83249473 is an apocalyptic number.

It is an amenable number.

83249473 is a deficient number, since it is larger than the sum of its proper divisors (736835).

83249473 is a wasteful number, since it uses less digits than its factorization.

83249473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736834.

The product of its digits is 145152, while the sum is 40.

The square root of 83249473 is about 9124.1149159795. The cubic root of 83249473 is about 436.6436656947.

It can be divided in two parts, 832 and 49473, that added together give a palindrome (50305).

The spelling of 83249473 in words is "eighty-three million, two hundred forty-nine thousand, four hundred seventy-three".