30403969 has 2 divisors, whose sum is σ = 30403970. Its totient is φ = 30403968.

The previous prime is 30403951. The next prime is 30403987. The reversal of 30403969 is 96930403.

It is a balanced prime because it is at equal distance from previous prime (30403951) and next prime (30403987).

It can be written as a sum of positive squares in only one way, i.e., 16810000 + 13593969 = 4100^2 + 3687^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30403969 is a prime.

It is a super-2 number, since 2×30403969² = 1848802661905922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30403949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15201984 + 15201985.

It is an arithmetic number, because the mean of its divisors is an integer number (15201985).

Almost surely, 2^30403969 is an apocalyptic number.

It is an amenable number.

30403969 is a deficient number, since it is larger than the sum of its proper divisors (1).

30403969 is an equidigital number, since it uses as much as digits as its factorization.

30403969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 30403969 is about 5513.9794159935. The cubic root of 30403969 is about 312.1117319799. Note that the first 3 decimals are identical.

The spelling of 30403969 in words is "thirty million, four hundred three thousand, nine hundred sixty-nine".