83416989 has 4 divisors (see below), whose sum is σ = 111222656. Its totient is φ = 55611324.

The previous prime is 83416987. The next prime is 83417003. The reversal of 83416989 is 98961438.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 83416989 - 2¹ = 83416987 is a prime.

It is a super-2 number, since 2×83416989² = 13916788107652242, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83416987) 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 3 ways as a sum of consecutive naturals, for example, 13902829 + ... + 13902834.

It is an arithmetic number, because the mean of its divisors is an integer number (27805664).

Almost surely, 2^83416989 is an apocalyptic number.

It is an amenable number.

83416989 is a deficient number, since it is larger than the sum of its proper divisors (27805667).

83416989 is a wasteful number, since it uses less digits than its factorization.

83416989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27805666.

The product of its digits is 373248, while the sum is 48.

The square root of 83416989 is about 9133.2901519660. The cubic root of 83416989 is about 436.9363433993.

The spelling of 83416989 in words is "eighty-three million, four hundred sixteen thousand, nine hundred eighty-nine".