27639101 has 8 divisors (see below), whose sum is σ = 31738944. Its totient is φ = 23577120.

The previous prime is 27639097. The next prime is 27639103. The reversal of 27639101 is 10193672.

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

It is not a de Polignac number, because 27639101 - 2² = 27639097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27639103) 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, 7880 + ... + 10833.

It is an arithmetic number, because the mean of its divisors is an integer number (3967368).

Almost surely, 2^27639101 is an apocalyptic number.

It is an amenable number.

27639101 is a deficient number, since it is larger than the sum of its proper divisors (4099843).

27639101 is a wasteful number, since it uses less digits than its factorization.

27639101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18931.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 27639101 is about 5257.2902716133. The cubic root of 27639101 is about 302.3486062555.

The spelling of 27639101 in words is "twenty-seven million, six hundred thirty-nine thousand, one hundred one".