1597057898 has 16 divisors (see below), whose sum is σ = 2480129280. Its totient is φ = 770391216.

The previous prime is 1597057837. The next prime is 1597057933. The reversal of 1597057898 is 8987507951.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 69215 + ... + 89357.

It is an arithmetic number, because the mean of its divisors is an integer number (155008080).

Almost surely, 2^1597057898 is an apocalyptic number.

1597057898 is a deficient number, since it is larger than the sum of its proper divisors (883071382).

1597057898 is a wasteful number, since it uses less digits than its factorization.

1597057898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21541.

The product of its (nonzero) digits is 6350400, while the sum is 59.

The square root of 1597057898 is about 39963.2068032584. The cubic root of 1597057898 is about 1168.8897588863.

The spelling of 1597057898 in words is "one billion, five hundred ninety-seven million, fifty-seven thousand, eight hundred ninety-eight".