30990027 has 4 divisors (see below), whose sum is σ = 41320040. Its totient is φ = 20660016.

The previous prime is 30990019. The next prime is 30990077. The reversal of 30990027 is 72009903.

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

It is not a de Polignac number, because 30990027 - 2³ = 30990019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30989976 and 30990003.

It is not an unprimeable number, because it can be changed into a prime (30990077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5165002 + ... + 5165007.

It is an arithmetic number, because the mean of its divisors is an integer number (10330010).

Almost surely, 2^30990027 is an apocalyptic number.

30990027 is a deficient number, since it is larger than the sum of its proper divisors (10330013).

30990027 is a wasteful number, since it uses less digits than its factorization.

30990027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10330012.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 30990027 is about 5566.8686889489. The cubic root of 30990027 is about 314.1043745408.

The spelling of 30990027 in words is "thirty million, nine hundred ninety thousand, twenty-seven".