30628773 has 30 divisors (see below), whose sum is σ = 53231046. Its totient is φ = 17499888.

The previous prime is 30628769. The next prime is 30628811. The reversal of 30628773 is 37782603.

30628773 is a `hidden beast` number, since 306 + 287 + 73 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26040609 + 4588164 = 5103^2 + 2142^2 .

It is not a de Polignac number, because 30628773 - 2² = 30628769 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30628723) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 111 + ... + 7827.

Almost surely, 2^30628773 is an apocalyptic number.

It is an amenable number.

30628773 is a deficient number, since it is larger than the sum of its proper divisors (22602273).

30628773 is an equidigital number, since it uses as much as digits as its factorization.

30628773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7743 (or 7727 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 30628773 is about 5534.3267883276. The cubic root of 30628773 is about 312.8790851297.

The spelling of 30628773 in words is "thirty million, six hundred twenty-eight thousand, seven hundred seventy-three".