30530217 has 8 divisors (see below), whose sum is σ = 41807296. Its totient is φ = 19803312.

The previous prime is 30530209. The next prime is 30530219. The reversal of 30530217 is 71203503.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30530217 - 2³ = 30530209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30530193 and 30530202.

It is not an unprimeable number, because it can be changed into a prime (30530219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137413 + ... + 137634.

It is an arithmetic number, because the mean of its divisors is an integer number (5225912).

Almost surely, 2^30530217 is an apocalyptic number.

30530217 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

30530217 is a deficient number, since it is larger than the sum of its proper divisors (11277079).

30530217 is a wasteful number, since it uses less digits than its factorization.

30530217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275087.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 30530217 is about 5525.4155499835. The cubic root of 30530217 is about 312.5431347391.

The spelling of 30530217 in words is "thirty million, five hundred thirty thousand, two hundred seventeen".