27628961 has 8 divisors (see below), whose sum is σ = 29404800. Its totient is φ = 25869888.

The previous prime is 27628949. The next prime is 27628987. The reversal of 27628961 is 16982672.

27628961 is nontrivially palindromic in base 16.

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

It is a cyclic number.

It is not a de Polignac number, because 27628961 - 2⁶ = 27628897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27628061) 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, 701 + ... + 7466.

It is an arithmetic number, because the mean of its divisors is an integer number (3675600).

Almost surely, 2^27628961 is an apocalyptic number.

It is an amenable number.

27628961 is a deficient number, since it is larger than the sum of its proper divisors (1775839).

27628961 is a wasteful number, since it uses less digits than its factorization.

27628961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8383.

The product of its digits is 72576, while the sum is 41.

The square root of 27628961 is about 5256.3258080146. The cubic root of 27628961 is about 302.3116273651.

The spelling of 27628961 in words is "twenty-seven million, six hundred twenty-eight thousand, nine hundred sixty-one".