30999801 has 24 divisors (see below), whose sum is σ = 48345120. Its totient is φ = 17617152.

The previous prime is 30999781. The next prime is 30999803. The reversal of 30999801 is 10899903.

It is not a de Polignac number, because 30999801 - 2⁶ = 30999737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30999801.

It is not an unprimeable number, because it can be changed into a prime (30999803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32905 + ... + 33833.

It is an arithmetic number, because the mean of its divisors is an integer number (2014380).

Almost surely, 2^30999801 is an apocalyptic number.

It is an amenable number.

30999801 is a deficient number, since it is larger than the sum of its proper divisors (17345319).

30999801 is a wasteful number, since it uses less digits than its factorization.

30999801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173 (or 1166 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 30999801 is about 5567.7464920738. The cubic root of 30999801 is about 314.1373930498.

The spelling of 30999801 in words is "thirty million, nine hundred ninety-nine thousand, eight hundred one".