27629745 has 48 divisors (see below), whose sum is σ = 52374336. Its totient is φ = 12355200.

The previous prime is 27629737. The next prime is 27629747. The reversal of 27629745 is 54792672.

It is not a de Polignac number, because 27629745 - 2³ = 27629737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27629697 and 27629706.

It is not an unprimeable number, because it can be changed into a prime (27629747) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23010 + ... + 24180.

It is an arithmetic number, because the mean of its divisors is an integer number (1091132).

Almost surely, 2^27629745 is an apocalyptic number.

It is an amenable number.

27629745 is a deficient number, since it is larger than the sum of its proper divisors (24744591).

27629745 is a wasteful number, since it uses less digits than its factorization.

27629745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214 (or 1203 counting only the distinct ones).

The product of its digits is 211680, while the sum is 42.

The square root of 27629745 is about 5256.4003842934. The cubic root of 27629745 is about 302.3144868051.

The spelling of 27629745 in words is "twenty-seven million, six hundred twenty-nine thousand, seven hundred forty-five".