1597470839 has 2 divisors, whose sum is σ = 1597470840. Its totient is φ = 1597470838.

The previous prime is 1597470811. The next prime is 1597470851. The reversal of 1597470839 is 9380747951.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1597470839 - 2⁸ = 1597470583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1597470859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 798735419 + 798735420.

It is an arithmetic number, because the mean of its divisors is an integer number (798735420).

Almost surely, 2^1597470839 is an apocalyptic number.

1597470839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1597470839 is an equidigital number, since it uses as much as digits as its factorization.

1597470839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The square root of 1597470839 is about 39968.3729841484. The cubic root of 1597470839 is about 1168.9904943097.

The spelling of 1597470839 in words is "one billion, five hundred ninety-seven million, four hundred seventy thousand, eight hundred thirty-nine".