83649463 has 4 divisors (see below), whose sum is σ = 83671720. Its totient is φ = 83627208.

The previous prime is 83649383. The next prime is 83649487. The reversal of 83649463 is 36494638.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36494638 = 2 ⋅18247319.

It is a cyclic number.

It is not a de Polignac number, because 83649463 - 2²¹ = 81552311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83641463) 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, 3945 + ... + 13522.

It is an arithmetic number, because the mean of its divisors is an integer number (20917930).

Almost surely, 2^83649463 is an apocalyptic number.

83649463 is a deficient number, since it is larger than the sum of its proper divisors (22257).

83649463 is a wasteful number, since it uses less digits than its factorization.

83649463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22256.

The product of its digits is 373248, while the sum is 43.

The square root of 83649463 is about 9146.0080362965. The cubic root of 83649463 is about 437.3418648078.

The spelling of 83649463 in words is "eighty-three million, six hundred forty-nine thousand, four hundred sixty-three".