83649470 has 32 divisors (see below), whose sum is σ = 156542976. Its totient is φ = 32148000.

The previous prime is 83649383. The next prime is 83649487. The reversal of 83649470 is 7494638.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 45917 + ... + 47703.

It is an arithmetic number, because the mean of its divisors is an integer number (4891968).

Almost surely, 2^83649470 is an apocalyptic number.

83649470 is a deficient number, since it is larger than the sum of its proper divisors (72893506).

83649470 is a wasteful number, since it uses less digits than its factorization.

83649470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 83649470 is about 9146.0084189771. The cubic root of 83649470 is about 437.3418770071.

The spelling of 83649470 in words is "eighty-three million, six hundred forty-nine thousand, four hundred seventy".