27739047 has 12 divisors (see below), whose sum is σ = 43024056. Its totient is φ = 15850800.

The previous prime is 27739037. The next prime is 27739067. The reversal of 27739047 is 74093772.

It is not a de Polignac number, because 27739047 - 2¹¹ = 27736999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27738996 and 27739014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27739007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94204 + ... + 94497.

It is an arithmetic number, because the mean of its divisors is an integer number (3585338).

Almost surely, 2^27739047 is an apocalyptic number.

27739047 is a deficient number, since it is larger than the sum of its proper divisors (15285009).

27739047 is a wasteful number, since it uses less digits than its factorization.

27739047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188718 (or 188711 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 39.

The square root of 27739047 is about 5266.7871610689. The cubic root of 27739047 is about 302.7126096807.

The spelling of 27739047 in words is "twenty-seven million, seven hundred thirty-nine thousand, forty-seven".