27745946 has 4 divisors (see below), whose sum is σ = 41618922. Its totient is φ = 13872972.

The previous prime is 27745943. The next prime is 27745951. The reversal of 27745946 is 64954772.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20802721 + 6943225 = 4561^2 + 2635^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27745897 and 27745906.

It is not an unprimeable number, because it can be changed into a prime (27745943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6936485 + ... + 6936488.

Almost surely, 2^27745946 is an apocalyptic number.

27745946 is a deficient number, since it is larger than the sum of its proper divisors (13872976).

27745946 is a wasteful number, since it uses less digits than its factorization.

27745946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13872975.

The product of its digits is 423360, while the sum is 44.

The square root of 27745946 is about 5267.4420737204. The cubic root of 27745946 is about 302.7377035635.

The spelling of 27745946 in words is "twenty-seven million, seven hundred forty-five thousand, nine hundred forty-six".