999980229 has 8 divisors (see below), whose sum is σ = 1333806112. Its totient is φ = 666403920.

The previous prime is 999980213. The next prime is 999980231. The reversal of 999980229 is 922089999.

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

It is not a de Polignac number, because 999980229 - 2⁴ = 999980213 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 (999980209) 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, 52834 + ... + 69219.

It is an arithmetic number, because the mean of its divisors is an integer number (166725764).

Almost surely, 2^999980229 is an apocalyptic number.

It is an amenable number.

999980229 is a deficient number, since it is larger than the sum of its proper divisors (333825883).

999980229 is a wasteful number, since it uses less digits than its factorization.

999980229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124787.

The product of its (nonzero) digits is 1889568, while the sum is 57.

The square root of 999980229 is about 31622.4639931805. The cubic root of 999980229 is about 999.9934096232.

The spelling of 999980229 in words is "nine hundred ninety-nine million, nine hundred eighty thousand, two hundred twenty-nine".