1597854479 has 4 divisors (see below), whose sum is σ = 1720766376. Its totient is φ = 1474942584.

The previous prime is 1597854473. The next prime is 1597854487. The reversal of 1597854479 is 9744587951.

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 1597854479 - 2²⁴ = 1581077263 is a prime.

It is a super-2 number, since 2×1597854479² = 5106277872120722882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1597854473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61455929 + ... + 61455954.

It is an arithmetic number, because the mean of its divisors is an integer number (430191594).

Almost surely, 2^1597854479 is an apocalyptic number.

1597854479 is a deficient number, since it is larger than the sum of its proper divisors (122911897).

1597854479 is a wasteful number, since it uses less digits than its factorization.

1597854479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122911896.

The product of its digits is 12700800, while the sum is 59.

The square root of 1597854479 is about 39973.1719907240. The cubic root of 1597854479 is about 1169.0840663083.

The spelling of 1597854479 in words is "one billion, five hundred ninety-seven million, eight hundred fifty-four thousand, four hundred seventy-nine".