83798653 has 8 divisors (see below), whose sum is σ = 85173048. Its totient is φ = 82435584.

The previous prime is 83798641. The next prime is 83798669. The reversal of 83798653 is 35689738.

It can be written as a sum of positive squares in 4 ways, for example, as 131044 + 83667609 = 362^2 + 9147^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 83798653 - 2⁵ = 83798621 is a prime.

It is a super-2 number, since 2×83798653² = 14044428489228818, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83798597 and 83798606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83798153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12775 + ... + 18187.

It is an arithmetic number, because the mean of its divisors is an integer number (10646631).

Almost surely, 2^83798653 is an apocalyptic number.

It is an amenable number.

83798653 is a deficient number, since it is larger than the sum of its proper divisors (1374395).

83798653 is a wasteful number, since it uses less digits than its factorization.

83798653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5663.

The product of its digits is 1088640, while the sum is 49.

The square root of 83798653 is about 9154.1604202679. The cubic root of 83798653 is about 437.6017121883.

The spelling of 83798653 in words is "eighty-three million, seven hundred ninety-eight thousand, six hundred fifty-three".