30421499 has 2 divisors, whose sum is σ = 30421500. Its totient is φ = 30421498.

The previous prime is 30421487. The next prime is 30421513. The reversal of 30421499 is 99412403.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30421499 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30421459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15210749 + 15210750.

It is an arithmetic number, because the mean of its divisors is an integer number (15210750).

Almost surely, 2^30421499 is an apocalyptic number.

30421499 is a deficient number, since it is larger than the sum of its proper divisors (1).

30421499 is an equidigital number, since it uses as much as digits as its factorization.

30421499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 30421499 is about 5515.5687829996. The cubic root of 30421499 is about 312.1717051528.

The spelling of 30421499 in words is "thirty million, four hundred twenty-one thousand, four hundred ninety-nine".