27765028 has 6 divisors (see below), whose sum is σ = 48588806. Its totient is φ = 13882512.

The previous prime is 27765019. The next prime is 27765037. The reversal of 27765028 is 82056772.

It is an interprime number because it is at equal distance from previous prime (27765019) and next prime (27765037).

It can be written as a sum of positive squares in only one way, i.e., 14500864 + 13264164 = 3808^2 + 3642^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3470625 + ... + 3470632.

Almost surely, 2^27765028 is an apocalyptic number.

It is an amenable number.

27765028 is a deficient number, since it is larger than the sum of its proper divisors (20823778).

27765028 is a wasteful number, since it uses less digits than its factorization.

27765028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6941261 (or 6941259 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 27765028 is about 5269.2530779988. The cubic root of 27765028 is about 302.8070892801.

The spelling of 27765028 in words is "twenty-seven million, seven hundred sixty-five thousand, twenty-eight".