27948765 has 32 divisors (see below), whose sum is σ = 50996736. Its totient is φ = 12948480.

The previous prime is 27948761. The next prime is 27948787. The reversal of 27948765 is 56784972.

It is not a de Polignac number, because 27948765 - 2² = 27948761 is a prime.

It is a super-2 number, since 2×27948765² = 1562266930050450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27948761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 901 + ... + 7530.

It is an arithmetic number, because the mean of its divisors is an integer number (1593648).

Almost surely, 2^27948765 is an apocalyptic number.

It is an amenable number.

27948765 is a deficient number, since it is larger than the sum of its proper divisors (23047971).

27948765 is a wasteful number, since it uses less digits than its factorization.

27948765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8469.

The product of its digits is 846720, while the sum is 48.

The square root of 27948765 is about 5286.6591530001. The cubic root of 27948765 is about 303.4735702508.

The spelling of 27948765 in words is "twenty-seven million, nine hundred forty-eight thousand, seven hundred sixty-five".