27790456 has 32 divisors (see below), whose sum is σ = 53776800. Its totient is φ = 13455360.

The previous prime is 27790447. The next prime is 27790457. The reversal of 27790456 is 65409772.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27790457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63085 + ... + 63523.

It is an arithmetic number, because the mean of its divisors is an integer number (1680525).

Almost surely, 2^27790456 is an apocalyptic number.

It is an amenable number.

27790456 is a deficient number, since it is larger than the sum of its proper divisors (25986344).

27790456 is a wasteful number, since it uses less digits than its factorization.

27790456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 27790456 is about 5271.6653915058. The cubic root of 27790456 is about 302.8995008479.

The spelling of 27790456 in words is "twenty-seven million, seven hundred ninety thousand, four hundred fifty-six".