99880373 has 2 divisors, whose sum is σ = 99880374. Its totient is φ = 99880372.

The previous prime is 99880351. The next prime is 99880393. The reversal of 99880373 is 37308899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80317444 + 19562929 = 8962^2 + 4423^2 .

It is a cyclic number.

It is not a de Polignac number, because 99880373 - 2¹⁰ = 99879349 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99880393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49940186 + 49940187.

It is an arithmetic number, because the mean of its divisors is an integer number (49940187).

Almost surely, 2^99880373 is an apocalyptic number.

It is an amenable number.

99880373 is a deficient number, since it is larger than the sum of its proper divisors (1).

99880373 is an equidigital number, since it uses as much as digits as its factorization.

99880373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 99880373 is about 9994.0168601018. The cubic root of 99880373 is about 463.9737230586.

The spelling of 99880373 in words is "ninety-nine million, eight hundred eighty thousand, three hundred seventy-three".