99980359 has 4 divisors (see below), whose sum is σ = 100897720. Its totient is φ = 99063000.

The previous prime is 99980357. The next prime is 99980399. The reversal of 99980359 is 95308999.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99980359 - 2¹ = 99980357 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 (99980351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458517 + ... + 458734.

It is an arithmetic number, because the mean of its divisors is an integer number (25224430).

Almost surely, 2^99980359 is an apocalyptic number.

99980359 is a deficient number, since it is larger than the sum of its proper divisors (917361).

99980359 is a wasteful number, since it uses less digits than its factorization.

99980359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917360.

The product of its (nonzero) digits is 787320, while the sum is 52.

The square root of 99980359 is about 9999.0179017742. The cubic root of 99980359 is about 464.1284928894.

The spelling of 99980359 in words is "ninety-nine million, nine hundred eighty thousand, three hundred fifty-nine".