30664678 has 16 divisors (see below), whose sum is σ = 50348304. Its totient is φ = 13891360.

The previous prime is 30664663. The next prime is 30664693. The reversal of 30664678 is 87646603.

It is an interprime number because it is at equal distance from previous prime (30664663) and next prime (30664693).

It is a self number, because there is not a number n which added to its sum of digits gives 30664678.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4776 + ... + 9172.

It is an arithmetic number, because the mean of its divisors is an integer number (3146769).

Almost surely, 2^30664678 is an apocalyptic number.

30664678 is a deficient number, since it is larger than the sum of its proper divisors (19683626).

30664678 is a wasteful number, since it uses less digits than its factorization.

30664678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4727.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 30664678 is about 5537.5696835345. The cubic root of 30664678 is about 313.0012963231.

It can be divided in two parts, 3066 and 4678, that added together give a square (7744 = 88²).

The spelling of 30664678 in words is "thirty million, six hundred sixty-four thousand, six hundred seventy-eight".