27661070 has 16 divisors (see below), whose sum is σ = 51507360. Its totient is φ = 10682784.

The previous prime is 27661069. The next prime is 27661129. The reversal of 27661070 is 7016672.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 47402 + ... + 47981.

It is an arithmetic number, because the mean of its divisors is an integer number (3219210).

Almost surely, 2^27661070 is an apocalyptic number.

27661070 is a deficient number, since it is larger than the sum of its proper divisors (23846290).

27661070 is a wasteful number, since it uses less digits than its factorization.

27661070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95419.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 27661070 is about 5259.3792409371. The cubic root of 27661070 is about 302.4286925245.

The spelling of 27661070 in words is "twenty-seven million, six hundred sixty-one thousand, seventy".