7138827 has 32 divisors (see below), whose sum is σ = 11381760. Its totient is φ = 4406400.

The previous prime is 7138819. The next prime is 7138829. The reversal of 7138827 is 7288317.

It is not a de Polignac number, because 7138827 - 2³ = 7138819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7138791 and 7138800.

It is not an unprimeable number, because it can be changed into a prime (7138829) 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 31 ways as a sum of consecutive naturals, for example, 47202 + ... + 47352.

It is an arithmetic number, because the mean of its divisors is an integer number (355680).

Almost surely, 2^7138827 is an apocalyptic number.

7138827 is a deficient number, since it is larger than the sum of its proper divisors (4242933).

7138827 is a wasteful number, since it uses less digits than its factorization.

7138827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280 (or 274 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 7138827 is about 2671.8583420533. The cubic root of 7138827 is about 192.5494515107.

The spelling of 7138827 in words is "seven million, one hundred thirty-eight thousand, eight hundred twenty-seven".