1597946479 has 2 divisors, whose sum is σ = 1597946480. Its totient is φ = 1597946478.

The previous prime is 1597946473. The next prime is 1597946489. The reversal of 1597946479 is 9746497951.

It is a weak prime.

It is an emirp because it is prime and its reverse (9746497951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1597946479 - 2¹¹ = 1597944431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1597946473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 798973239 + 798973240.

It is an arithmetic number, because the mean of its divisors is an integer number (798973240).

Almost surely, 2^1597946479 is an apocalyptic number.

1597946479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1597946479 is an equidigital number, since it uses as much as digits as its factorization.

1597946479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17146080, while the sum is 61.

The square root of 1597946479 is about 39974.3227459828. The cubic root of 1597946479 is about 1169.1065034099.

The spelling of 1597946479 in words is "one billion, five hundred ninety-seven million, nine hundred forty-six thousand, four hundred seventy-nine".