27664942 has 8 divisors (see below), whose sum is σ = 41519736. Its totient is φ = 13825032.

The previous prime is 27664939. The next prime is 27664943. The reversal of 27664942 is 24946672.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 27664895 and 27664904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27664943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5388 + ... + 9184.

It is an arithmetic number, because the mean of its divisors is an integer number (5189967).

Almost surely, 2^27664942 is an apocalyptic number.

27664942 is a deficient number, since it is larger than the sum of its proper divisors (13854794).

27664942 is a wasteful number, since it uses less digits than its factorization.

27664942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7442.

The product of its digits is 145152, while the sum is 40.

The square root of 27664942 is about 5259.7473323345. The cubic root of 27664942 is about 302.4428032013.

The spelling of 27664942 in words is "twenty-seven million, six hundred sixty-four thousand, nine hundred forty-two".