30689876 has 36 divisors (see below), whose sum is σ = 64503936. Its totient is φ = 12726000.

The previous prime is 30689861. The next prime is 30689881. The reversal of 30689876 is 67898603.

It is a self number, because there is not a number n which added to its sum of digits gives 30689876.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3551 + ... + 8601.

It is an arithmetic number, because the mean of its divisors is an integer number (1791776).

Almost surely, 2^30689876 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30689876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32251968).

30689876 is an abundant number, since it is smaller than the sum of its proper divisors (33814060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30689876 is a wasteful number, since it uses less digits than its factorization.

30689876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100 (or 5091 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 30689876 is about 5539.8444021470. The cubic root of 30689876 is about 313.0870067435.

The spelling of 30689876 in words is "thirty million, six hundred eighty-nine thousand, eight hundred seventy-six".