30689769 has 16 divisors (see below), whose sum is σ = 46990080. Its totient is φ = 17620560.

The previous prime is 30689753. The next prime is 30689773. The reversal of 30689769 is 96798603.

It is a happy number.

It is not a de Polignac number, because 30689769 - 2⁴ = 30689753 is a prime.

It is a super-2 number, since 2×30689769² = 1883723842546722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30689669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23847 + ... + 25100.

It is an arithmetic number, because the mean of its divisors is an integer number (2936880).

Almost surely, 2^30689769 is an apocalyptic number.

It is an amenable number.

30689769 is a deficient number, since it is larger than the sum of its proper divisors (16300311).

30689769 is a wasteful number, since it uses less digits than its factorization.

30689769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48980.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 30689769 is about 5539.8347448277. The cubic root of 30689769 is about 313.0866428846.

The spelling of 30689769 in words is "thirty million, six hundred eighty-nine thousand, seven hundred sixty-nine".