30073989 has 16 divisors (see below), whose sum is σ = 44020224. Its totient is φ = 18111600.

The previous prime is 30073987. The next prime is 30073991. The reversal of 30073989 is 98937003.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30073987) and next prime (30073991).

It is not a de Polignac number, because 30073989 - 2¹ = 30073987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30073987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2584 + ... + 8174.

It is an arithmetic number, because the mean of its divisors is an integer number (2751264).

Almost surely, 2^30073989 is an apocalyptic number.

It is an amenable number.

30073989 is a deficient number, since it is larger than the sum of its proper divisors (13946235).

30073989 is a wasteful number, since it uses less digits than its factorization.

30073989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5768.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 30073989 is about 5483.9756564011. The cubic root of 30073989 is about 310.9784864652.

It can be divided in two parts, 3007 and 3989, that added together give a palindrome (6996).

The spelling of 30073989 in words is "thirty million, seventy-three thousand, nine hundred eighty-nine".