30668533 has 8 divisors (see below), whose sum is σ = 35904960. Its totient is φ = 25645920.

The previous prime is 30668509. The next prime is 30668557. The reversal of 30668533 is 33586603.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30668509) and next prime (30668557).

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

It is a cyclic number.

It is not a de Polignac number, because 30668533 - 2²¹ = 28571381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30668593) 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, 53143 + ... + 53716.

It is an arithmetic number, because the mean of its divisors is an integer number (4488120).

Almost surely, 2^30668533 is an apocalyptic number.

It is an amenable number.

30668533 is a deficient number, since it is larger than the sum of its proper divisors (5236427).

30668533 is a wasteful number, since it uses less digits than its factorization.

30668533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106907.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 30668533 is about 5537.9177494795. The cubic root of 30668533 is about 313.0144120588.

The spelling of 30668533 in words is "thirty million, six hundred sixty-eight thousand, five hundred thirty-three".