30528007 has 2 divisors, whose sum is σ = 30528008. Its totient is φ = 30528006.

The previous prime is 30527989. The next prime is 30528011. The reversal of 30528007 is 70082503.

It is a strong prime.

It is an emirp because it is prime and its reverse (70082503) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30528007 is a prime.

It is a super-2 number, since 2×30528007² = 1863918422784098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30528607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15264003 + 15264004.

It is an arithmetic number, because the mean of its divisors is an integer number (15264004).

Almost surely, 2^30528007 is an apocalyptic number.

30528007 is a deficient number, since it is larger than the sum of its proper divisors (1).

30528007 is an equidigital number, since it uses as much as digits as its factorization.

30528007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 30528007 is about 5525.2155614057. The cubic root of 30528007 is about 312.5355931725.

The spelling of 30528007 in words is "thirty million, five hundred twenty-eight thousand, seven".