27759045 has 32 divisors (see below), whose sum is σ = 49082112. Its totient is φ = 13325312.

The previous prime is 27759029. The next prime is 27759047. The reversal of 27759045 is 54095772.

It is a cyclic number.

It is not a de Polignac number, because 27759045 - 2⁴ = 27759029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27758994 and 27759012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27759047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3499 + ... + 8231.

It is an arithmetic number, because the mean of its divisors is an integer number (1533816).

Almost surely, 2^27759045 is an apocalyptic number.

It is an amenable number.

27759045 is a deficient number, since it is larger than the sum of its proper divisors (21323067).

27759045 is a wasteful number, since it uses less digits than its factorization.

27759045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4781.

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 27759045 is about 5268.6853198877. The cubic root of 27759045 is about 302.7853373966.

The spelling of 27759045 in words is "twenty-seven million, seven hundred fifty-nine thousand, forty-five".