30864089 has 4 divisors (see below), whose sum is σ = 30876324. Its totient is φ = 30851856.

The previous prime is 30864083. The next prime is 30864107. The reversal of 30864089 is 98046803.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5784025 + 25080064 = 2405^2 + 5008^2 .

It is a cyclic number.

It is not a de Polignac number, because 30864089 - 2¹² = 30859993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30864083) 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, 782 + ... + 7895.

It is an arithmetic number, because the mean of its divisors is an integer number (7719081).

Almost surely, 2^30864089 is an apocalyptic number.

It is an amenable number.

30864089 is a deficient number, since it is larger than the sum of its proper divisors (12235).

30864089 is an equidigital number, since it uses as much as digits as its factorization.

30864089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12234.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 30864089 is about 5555.5457877692. The cubic root of 30864089 is about 313.6783086200.

The spelling of 30864089 in words is "thirty million, eight hundred sixty-four thousand, eighty-nine".