83817946 has 8 divisors (see below), whose sum is σ = 130062420. Its totient is φ = 40463808.

The previous prime is 83817941. The next prime is 83817947. The reversal of 83817946 is 64971838.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 77000625 + 6817321 = 8775^2 + 2611^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×83817946³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83817896 and 83817905.

It is not an unprimeable number, because it can be changed into a prime (83817941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722511 + ... + 722626.

Almost surely, 2^83817946 is an apocalyptic number.

83817946 is a deficient number, since it is larger than the sum of its proper divisors (46244474).

83817946 is a wasteful number, since it uses less digits than its factorization.

83817946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445168.

The product of its digits is 290304, while the sum is 46.

The square root of 83817946 is about 9155.2141427713. The cubic root of 83817946 is about 437.6352926883.

The spelling of 83817946 in words is "eighty-three million, eight hundred seventeen thousand, nine hundred forty-six".