30628103 has 4 divisors (see below), whose sum is σ = 33412488. Its totient is φ = 27843720.

The previous prime is 30628097. The next prime is 30628123. The reversal of 30628103 is 30182603.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30628103 - 2¹⁴ = 30611719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30628123) 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, 1392176 + ... + 1392197.

It is an arithmetic number, because the mean of its divisors is an integer number (8353122).

Almost surely, 2^30628103 is an apocalyptic number.

30628103 is a deficient number, since it is larger than the sum of its proper divisors (2784385).

30628103 is a wasteful number, since it uses less digits than its factorization.

30628103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784384.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 30628103 is about 5534.2662566956. The cubic root of 30628103 is about 312.8768037181.

The spelling of 30628103 in words is "thirty million, six hundred twenty-eight thousand, one hundred three".