30998199 has 8 divisors (see below), whose sum is σ = 41585152. Its totient is φ = 20538360.

The previous prime is 30998197. The next prime is 30998203. The reversal of 30998199 is 99189903.

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

It is not a de Polignac number, because 30998199 - 2¹ = 30998197 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 (30998197) 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, 31207 + ... + 32184.

It is an arithmetic number, because the mean of its divisors is an integer number (5198144).

Almost surely, 2^30998199 is an apocalyptic number.

30998199 is a deficient number, since it is larger than the sum of its proper divisors (10586953).

30998199 is a wasteful number, since it uses less digits than its factorization.

30998199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63557.

The product of its (nonzero) digits is 157464, while the sum is 48.

The square root of 30998199 is about 5567.6026259064. The cubic root of 30998199 is about 314.1319816519.

The spelling of 30998199 in words is "thirty million, nine hundred ninety-eight thousand, one hundred ninety-nine".