1397754227 has 4 divisors (see below), whose sum is σ = 1400177256. Its totient is φ = 1395331200.

The previous prime is 1397754223. The next prime is 1397754271. The reversal of 1397754227 is 7224577931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1397754227 - 2² = 1397754223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1397754223) 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, 1210649 + ... + 1211802.

It is an arithmetic number, because the mean of its divisors is an integer number (350044314).

Almost surely, 2^1397754227 is an apocalyptic number.

1397754227 is a deficient number, since it is larger than the sum of its proper divisors (2423029).

1397754227 is an equidigital number, since it uses as much as digits as its factorization.

1397754227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423028.

The product of its digits is 740880, while the sum is 47.

The square root of 1397754227 is about 37386.5514189260. The cubic root of 1397754227 is about 1118.0904501819.

The spelling of 1397754227 in words is "one billion, three hundred ninety-seven million, seven hundred fifty-four thousand, two hundred twenty-seven".