30246989 has 2 divisors, whose sum is σ = 30246990. Its totient is φ = 30246988.

The previous prime is 30246973. The next prime is 30247013. The reversal of 30246989 is 98964203.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25908100 + 4338889 = 5090^2 + 2083^2 .

It is a cyclic number.

It is not a de Polignac number, because 30246989 - 2⁴ = 30246973 is a prime.

It is a super-2 number, since 2×30246989² = 1829760687132242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30246929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15123494 + 15123495.

It is an arithmetic number, because the mean of its divisors is an integer number (15123495).

Almost surely, 2^30246989 is an apocalyptic number.

It is an amenable number.

30246989 is a deficient number, since it is larger than the sum of its proper divisors (1).

30246989 is an equidigital number, since it uses as much as digits as its factorization.

30246989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 30246989 is about 5499.7262659154. The cubic root of 30246989 is about 311.5736458107.

The spelling of 30246989 in words is "thirty million, two hundred forty-six thousand, nine hundred eighty-nine".