1397064707 has 4 divisors (see below), whose sum is σ = 1426789536. Its totient is φ = 1367339880.

The previous prime is 1397064671. The next prime is 1397064733. The reversal of 1397064707 is 7074607931.

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 1397064707 - 2¹⁰ = 1397063683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1397064107) 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 3 ways as a sum of consecutive naturals, for example, 14862344 + ... + 14862437.

It is an arithmetic number, because the mean of its divisors is an integer number (356697384).

Almost surely, 2^1397064707 is an apocalyptic number.

1397064707 is a deficient number, since it is larger than the sum of its proper divisors (29724829).

1397064707 is an equidigital number, since it uses as much as digits as its factorization.

1397064707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29724828.

The product of its (nonzero) digits is 222264, while the sum is 44.

The square root of 1397064707 is about 37377.3287836357. The cubic root of 1397064707 is about 1117.9065665115.

The spelling of 1397064707 in words is "one billion, three hundred ninety-seven million, sixty-four thousand, seven hundred seven".