30469689 has 20 divisors (see below), whose sum is σ = 46148916. Its totient is φ = 20030976.

The previous prime is 30469667. The next prime is 30469717. The reversal of 30469689 is 98696403.

It can be written as a sum of positive squares in 2 ways, for example, as 18275625 + 12194064 = 4275^2 + 3492^2 .

It is not a de Polignac number, because 30469689 - 2¹⁷ = 30338617 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30469609) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3337 + ... + 8489.

Almost surely, 2^30469689 is an apocalyptic number.

It is an amenable number.

30469689 is a deficient number, since it is larger than the sum of its proper divisors (15679227).

30469689 is an equidigital number, since it uses as much as digits as its factorization.

30469689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5238 (or 5229 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 30469689 is about 5519.9355974504. The cubic root of 30469689 is about 312.3364528757.

The spelling of 30469689 in words is "thirty million, four hundred sixty-nine thousand, six hundred eighty-nine".