27478768 has 20 divisors (see below), whose sum is σ = 53584120. Its totient is φ = 13650624.

The previous prime is 27478723. The next prime is 27478799. The reversal of 27478768 is 86787472.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2958 + ... + 7981.

It is an arithmetic number, because the mean of its divisors is an integer number (2679206).

Almost surely, 2^27478768 is an apocalyptic number.

It is an amenable number.

27478768 is a deficient number, since it is larger than the sum of its proper divisors (26105352).

27478768 is a wasteful number, since it uses less digits than its factorization.

27478768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11104 (or 11098 counting only the distinct ones).

The product of its digits is 1053696, while the sum is 49.

The square root of 27478768 is about 5242.0194581859. The cubic root of 27478768 is about 301.7628358907.

The spelling of 27478768 in words is "twenty-seven million, four hundred seventy-eight thousand, seven hundred sixty-eight".