99980653 has 2 divisors, whose sum is σ = 99980654. Its totient is φ = 99980652.

The previous prime is 99980597. The next prime is 99980659. The reversal of 99980653 is 35608999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90383049 + 9597604 = 9507^2 + 3098^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99980653 is a prime.

It is a super-2 number, since 2×99980653² = 19992261948612818, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99980597 and 99980606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99980659) 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 as a sum of consecutive naturals, namely, 49990326 + 49990327.

It is an arithmetic number, because the mean of its divisors is an integer number (49990327).

Almost surely, 2^99980653 is an apocalyptic number.

It is an amenable number.

99980653 is a deficient number, since it is larger than the sum of its proper divisors (1).

99980653 is an equidigital number, since it uses as much as digits as its factorization.

99980653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 99980653 is about 9999.0326032072. The cubic root of 99980653 is about 464.1289478243.

The spelling of 99980653 in words is "ninety-nine million, nine hundred eighty thousand, six hundred fifty-three".