1397839535 has 12 divisors (see below), whose sum is σ = 1781884488. Its totient is φ = 1052489856.

The previous prime is 1397839529. The next prime is 1397839537. The reversal of 1397839535 is 5359387931.

It is not a de Polignac number, because 1397839535 - 2⁸ = 1397839279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397839537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 482237 + ... + 485126.

It is an arithmetic number, because the mean of its divisors is an integer number (148490374).

Almost surely, 2^1397839535 is an apocalyptic number.

1397839535 is a deficient number, since it is larger than the sum of its proper divisors (384044953).

1397839535 is an equidigital number, since it uses as much as digits as its factorization.

1397839535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967402 (or 967385 counting only the distinct ones).

The product of its digits is 3061800, while the sum is 53.

The square root of 1397839535 is about 37387.6922930528. The cubic root of 1397839535 is about 1118.1131962217.

The spelling of 1397839535 in words is "one billion, three hundred ninety-seven million, eight hundred thirty-nine thousand, five hundred thirty-five".