30646089 has 6 divisors (see below), whose sum is σ = 44266586. Its totient is φ = 20430720.

The previous prime is 30646081. The next prime is 30646093. The reversal of 30646089 is 98064603.

30646089 is a `hidden beast` number, since 3 + 0 + 646 + 0 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 30338064 + 308025 = 5508^2 + 555^2 .

It is not a de Polignac number, because 30646089 - 2³ = 30646081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30646081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1702552 + ... + 1702569.

Almost surely, 2^30646089 is an apocalyptic number.

It is an amenable number.

30646089 is a deficient number, since it is larger than the sum of its proper divisors (13620497).

30646089 is a wasteful number, since it uses less digits than its factorization.

30646089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405127 (or 3405124 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 30646089 is about 5535.8909851983. The cubic root of 30646089 is about 312.9380361643.

The spelling of 30646089 in words is "thirty million, six hundred forty-six thousand, eighty-nine".