27723530 has 16 divisors (see below), whose sum is σ = 50285664. Its totient is φ = 11004240.

The previous prime is 27723497. The next prime is 27723539. The reversal of 27723530 is 3532772.

It is a junction number, because it is equal to n+sod(n) for n = 27723493 and 27723502.

It is not an unprimeable number, because it can be changed into a prime (27723539) 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, 9272 + ... + 11891.

It is an arithmetic number, because the mean of its divisors is an integer number (3142854).

Almost surely, 2^27723530 is an apocalyptic number.

27723530 is a deficient number, since it is larger than the sum of its proper divisors (22562134).

27723530 is a wasteful number, since it uses less digits than its factorization.

27723530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21301.

The product of its (nonzero) digits is 8820, while the sum is 29.

The square root of 27723530 is about 5265.3138557925. The cubic root of 27723530 is about 302.6561541520.

The spelling of 27723530 in words is "twenty-seven million, seven hundred twenty-three thousand, five hundred thirty".