27915045 has 16 divisors (see below), whose sum is σ = 45231360. Its totient is φ = 14698944.

The previous prime is 27915011. The next prime is 27915073. The reversal of 27915045 is 54051972.

It is not a de Polignac number, because 27915045 - 2⁹ = 27914533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27914997 and 27915015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10594 + ... + 12963.

It is an arithmetic number, because the mean of its divisors is an integer number (2826960).

Almost surely, 2^27915045 is an apocalyptic number.

It is an amenable number.

27915045 is a deficient number, since it is larger than the sum of its proper divisors (17316315).

27915045 is a wasteful number, since it uses less digits than its factorization.

27915045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23644.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 27915045 is about 5283.4690308546. The cubic root of 27915045 is about 303.3514748505.

The spelling of 27915045 in words is "twenty-seven million, nine hundred fifteen thousand, forty-five".