27420788 has 6 divisors (see below), whose sum is σ = 47986386. Its totient is φ = 13710392.

The previous prime is 27420773. The next prime is 27420791. The reversal of 27420788 is 88702472.

It can be written as a sum of positive squares in only one way, i.e., 27331984 + 88804 = 5228^2 + 298^2 .

It is a super-2 number, since 2×27420788² = 1503799229081888, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 3427595 + ... + 3427602.

It is an arithmetic number, because the mean of its divisors is an integer number (7997731).

Almost surely, 2^27420788 is an apocalyptic number.

It is an amenable number.

27420788 is a deficient number, since it is larger than the sum of its proper divisors (20565598).

27420788 is a wasteful number, since it uses less digits than its factorization.

27420788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6855201 (or 6855199 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 38.

The square root of 27420788 is about 5236.4862264690. The cubic root of 27420788 is about 301.5504473138.

The spelling of 27420788 in words is "twenty-seven million, four hundred twenty thousand, seven hundred eighty-eight".