27746972 has 12 divisors (see below), whose sum is σ = 52971576. Its totient is φ = 12612240.

The previous prime is 27746959. The next prime is 27746977. The reversal of 27746972 is 27964772.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 630613 = 27746972 / (2 + 7 + 7 + 4 + 6 + 9 + 7 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27746977) 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 3 ways as a sum of consecutive naturals, for example, 315263 + ... + 315350.

It is an arithmetic number, because the mean of its divisors is an integer number (4414298).

Almost surely, 2^27746972 is an apocalyptic number.

27746972 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

27746972 is a deficient number, since it is larger than the sum of its proper divisors (25224604).

27746972 is a wasteful number, since it uses less digits than its factorization.

27746972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630628 (or 630626 counting only the distinct ones).

The product of its digits is 296352, while the sum is 44.

The square root of 27746972 is about 5267.5394635446. The cubic root of 27746972 is about 302.7414351003.

The spelling of 27746972 in words is "twenty-seven million, seven hundred forty-six thousand, nine hundred seventy-two".