27722690 has 16 divisors (see below), whose sum is σ = 50155200. Its totient is φ = 11032560.

The previous prime is 27722677. The next prime is 27722693. The reversal of 27722690 is 9622772.

It is a super-2 number, since 2×27722690² = 1537095081672200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27722690.

It is not an unprimeable number, because it can be changed into a prime (27722693) 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 7 ways as a sum of consecutive naturals, for example, 4976 + ... + 8955.

It is an arithmetic number, because the mean of its divisors is an integer number (3134700).

Almost surely, 2^27722690 is an apocalyptic number.

27722690 is a deficient number, since it is larger than the sum of its proper divisors (22432510).

27722690 is a wasteful number, since it uses less digits than its factorization.

27722690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14137.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 27722690 is about 5265.2340878635. The cubic root of 27722690 is about 302.6530973775.

The spelling of 27722690 in words is "twenty-seven million, seven hundred twenty-two thousand, six hundred ninety".