30421763 has 2 divisors, whose sum is σ = 30421764. Its totient is φ = 30421762.

The previous prime is 30421753. The next prime is 30421817. The reversal of 30421763 is 36712403.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30421763 - 2²⁰ = 29373187 is a prime.

It is not a weakly prime, because it can be changed into another prime (30421723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15210881 + 15210882.

It is an arithmetic number, because the mean of its divisors is an integer number (15210882).

Almost surely, 2^30421763 is an apocalyptic number.

30421763 is a deficient number, since it is larger than the sum of its proper divisors (1).

30421763 is an equidigital number, since it uses as much as digits as its factorization.

30421763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 30421763 is about 5515.5927152030. The cubic root of 30421763 is about 312.1726081665.

The spelling of 30421763 in words is "thirty million, four hundred twenty-one thousand, seven hundred sixty-three".