30996849 has 16 divisors (see below), whose sum is σ = 44620352. Its totient is φ = 19027008.

The previous prime is 30996841. The next prime is 30996859. The reversal of 30996849 is 94869903.

It is a happy number.

It is not a de Polignac number, because 30996849 - 2³ = 30996841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30996798 and 30996807.

It is not an unprimeable number, because it can be changed into a prime (30996841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20607 + ... + 22059.

It is an arithmetic number, because the mean of its divisors is an integer number (2788772).

Almost surely, 2^30996849 is an apocalyptic number.

30996849 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

30996849 is a deficient number, since it is larger than the sum of its proper divisors (13623503).

30996849 is a wasteful number, since it uses less digits than its factorization.

30996849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016.

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 30996849 is about 5567.4813874857. The cubic root of 30996849 is about 314.1274213404.

The spelling of 30996849 in words is "thirty million, nine hundred ninety-six thousand, eight hundred forty-nine".