27830023 has 8 divisors (see below), whose sum is σ = 31274208. Its totient is φ = 24572064.

The previous prime is 27829999. The next prime is 27830027. The reversal of 27830023 is 32003872.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27830023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27830023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27830027) 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, 46240 + ... + 46837.

It is an arithmetic number, because the mean of its divisors is an integer number (3909276).

Almost surely, 2^27830023 is an apocalyptic number.

27830023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

27830023 is a deficient number, since it is larger than the sum of its proper divisors (3444185).

27830023 is a wasteful number, since it uses less digits than its factorization.

27830023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93113.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 27830023 is about 5275.4168555670. The cubic root of 27830023 is about 303.0431849626.

Adding to 27830023 its reverse (32003872), we get a palindrome (59833895).

Subtracting 27830023 from its reverse (32003872), we obtain a square (4173849 = 2043²).

It can be divided in two parts, 278300 and 23, that multiplied together give a square (6400900 = 2530²).

The spelling of 27830023 in words is "twenty-seven million, eight hundred thirty thousand, twenty-three".