30989199 has 4 divisors (see below), whose sum is σ = 41318936. Its totient is φ = 20659464.

The previous prime is 30989183. The next prime is 30989201. The reversal of 30989199 is 99198903.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99198903 = 3 ⋅33066301.

It is not a de Polignac number, because 30989199 - 2⁴ = 30989183 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 (30989149) 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, 5164864 + ... + 5164869.

It is an arithmetic number, because the mean of its divisors is an integer number (10329734).

Almost surely, 2^30989199 is an apocalyptic number.

30989199 is a deficient number, since it is larger than the sum of its proper divisors (10329737).

30989199 is a wasteful number, since it uses less digits than its factorization.

30989199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10329736.

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

The square root of 30989199 is about 5566.7943198936. The cubic root of 30989199 is about 314.1015770737.

The spelling of 30989199 in words is "thirty million, nine hundred eighty-nine thousand, one hundred ninety-nine".