30546993 has 4 divisors (see below), whose sum is σ = 40729328. Its totient is φ = 20364660.

The previous prime is 30546961. The next prime is 30547007. The reversal of 30546993 is 39964503.

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 not a de Polignac number, because 30546993 - 2⁵ = 30546961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30546953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5091163 + ... + 5091168.

It is an arithmetic number, because the mean of its divisors is an integer number (10182332).

Almost surely, 2^30546993 is an apocalyptic number.

It is an amenable number.

30546993 is a deficient number, since it is larger than the sum of its proper divisors (10182335).

30546993 is a wasteful number, since it uses less digits than its factorization.

30546993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10182334.

The product of its (nonzero) digits is 87480, while the sum is 39.

The square root of 30546993 is about 5526.9334173663. The cubic root of 30546993 is about 312.6003705323.

The spelling of 30546993 in words is "thirty million, five hundred forty-six thousand, nine hundred ninety-three".