1397106371 has 4 divisors (see below), whose sum is σ = 1420786200. Its totient is φ = 1373426544.

The previous prime is 1397106367. The next prime is 1397106379. The reversal of 1397106371 is 1736017931.

It is a happy number.

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

It is not a de Polignac number, because 1397106371 - 2² = 1397106367 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1397106379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11839826 + ... + 11839943.

It is an arithmetic number, because the mean of its divisors is an integer number (355196550).

Almost surely, 2^1397106371 is an apocalyptic number.

1397106371 is a deficient number, since it is larger than the sum of its proper divisors (23679829).

1397106371 is an equidigital number, since it uses as much as digits as its factorization.

1397106371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23679828.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 1397106371 is about 37377.8861226795. The cubic root of 1397106371 is about 1117.9176793340.

The spelling of 1397106371 in words is "one billion, three hundred ninety-seven million, one hundred six thousand, three hundred seventy-one".