207138827 has 6 divisors (see below), whose sum is σ = 240957468. Its totient is φ = 177547524.

The previous prime is 207138809. The next prime is 207138853. The reversal of 207138827 is 728831702.

It is not a de Polignac number, because 207138827 - 2⁸ = 207138571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (207108827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2113613 + ... + 2113710.

It is an arithmetic number, because the mean of its divisors is an integer number (40159578).

Almost surely, 2^207138827 is an apocalyptic number.

207138827 is a deficient number, since it is larger than the sum of its proper divisors (33818641).

207138827 is an equidigital number, since it uses as much as digits as its factorization.

207138827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4227337 (or 4227330 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 207138827 is about 14392.3183330553. The cubic root of 207138827 is about 591.6803833449.

The spelling of 207138827 in words is "two hundred seven million, one hundred thirty-eight thousand, eight hundred twenty-seven".