83961653 has 8 divisors (see below), whose sum is σ = 85435200. Its totient is φ = 82494720.

The previous prime is 83961613. The next prime is 83961667. The reversal of 83961653 is 35616938.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83961653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83961653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83961613) 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, 28688 + ... + 31478.

It is an arithmetic number, because the mean of its divisors is an integer number (10679400).

Almost surely, 2^83961653 is an apocalyptic number.

It is an amenable number.

83961653 is a deficient number, since it is larger than the sum of its proper divisors (1473547).

83961653 is a wasteful number, since it uses less digits than its factorization.

83961653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3307.

The product of its digits is 116640, while the sum is 41.

The square root of 83961653 is about 9163.0591507422. The cubic root of 83961653 is about 437.8852604242.

The spelling of 83961653 in words is "eighty-three million, nine hundred sixty-one thousand, six hundred fifty-three".