30679864 has 8 divisors (see below), whose sum is σ = 57524760. Its totient is φ = 15339928.

The previous prime is 30679843. The next prime is 30679867. The reversal of 30679864 is 46897603.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 30679864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30679867) by changing a digit.

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 as a sum of consecutive naturals, namely, 1917484 + ... + 1917499.

It is an arithmetic number, because the mean of its divisors is an integer number (7190595).

Almost surely, 2^30679864 is an apocalyptic number.

It is an amenable number.

30679864 is a deficient number, since it is larger than the sum of its proper divisors (26844896).

30679864 is a wasteful number, since it uses less digits than its factorization.

30679864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3834989 (or 3834985 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 30679864 is about 5538.9406929484. The cubic root of 30679864 is about 313.0529567737.

The spelling of 30679864 in words is "thirty million, six hundred seventy-nine thousand, eight hundred sixty-four".