30973489 has 4 divisors (see below), whose sum is σ = 30988800. Its totient is φ = 30958180.

The previous prime is 30973483. The next prime is 30973499. The reversal of 30973489 is 98437903.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30973489 - 2⁵ = 30973457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30973483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4057 + ... + 8854.

It is an arithmetic number, because the mean of its divisors is an integer number (7747200).

Almost surely, 2^30973489 is an apocalyptic number.

It is an amenable number.

30973489 is a deficient number, since it is larger than the sum of its proper divisors (15311).

30973489 is a wasteful number, since it uses less digits than its factorization.

30973489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15310.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 30973489 is about 5565.3830955290. The cubic root of 30973489 is about 314.0484900840.

The spelling of 30973489 in words is "thirty million, nine hundred seventy-three thousand, four hundred eighty-nine".