83945653 has 8 divisors (see below), whose sum is σ = 95558976. Its totient is φ = 72996000.

The previous prime is 83945647. The next prime is 83945663. The reversal of 83945653 is 35654938.

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

It is not a de Polignac number, because 83945653 - 2¹³ = 83937461 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 (83945623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165648 + ... + 166153.

It is an arithmetic number, because the mean of its divisors is an integer number (11944872).

Almost surely, 2^83945653 is an apocalyptic number.

It is an amenable number.

83945653 is a deficient number, since it is larger than the sum of its proper divisors (11613323).

83945653 is a wasteful number, since it uses less digits than its factorization.

83945653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331835.

The product of its digits is 388800, while the sum is 43.

The square root of 83945653 is about 9162.1860382771. The cubic root of 83945653 is about 437.8574437206.

The spelling of 83945653 in words is "eighty-three million, nine hundred forty-five thousand, six hundred fifty-three".