27628723 has 16 divisors (see below), whose sum is σ = 30081024. Its totient is φ = 25280640.

The previous prime is 27628709. The next prime is 27628739. The reversal of 27628723 is 32782672.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 27628723 - 2¹³ = 27620531 is a prime.

It is a super-2 number, since 2×27628723² = 1526692669221458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27628753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144558 + ... + 144748.

It is an arithmetic number, because the mean of its divisors is an integer number (1880064).

Almost surely, 2^27628723 is an apocalyptic number.

27628723 is a deficient number, since it is larger than the sum of its proper divisors (2452301).

27628723 is a wasteful number, since it uses less digits than its factorization.

27628723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402.

The product of its digits is 56448, while the sum is 37.

The square root of 27628723 is about 5256.3031685777. The cubic root of 27628723 is about 302.3107593101.

The spelling of 27628723 in words is "twenty-seven million, six hundred twenty-eight thousand, seven hundred twenty-three".