27830974 has 4 divisors (see below), whose sum is σ = 41746464. Its totient is φ = 13915486.

The previous prime is 27830951. The next prime is 27830983. The reversal of 27830974 is 47903872.

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

It is a super-2 number, since 2×27830974² = 1549126227577352, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6957742 + ... + 6957745.

It is an arithmetic number, because the mean of its divisors is an integer number (10436616).

Almost surely, 2^27830974 is an apocalyptic number.

27830974 is a deficient number, since it is larger than the sum of its proper divisors (13915490).

27830974 is a wasteful number, since it uses less digits than its factorization.

27830974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13915489.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 27830974 is about 5275.5069898542. The cubic root of 27830974 is about 303.0466367598.

The spelling of 27830974 in words is "twenty-seven million, eight hundred thirty thousand, nine hundred seventy-four".