1017357897 has 4 divisors (see below), whose sum is σ = 1356477200. Its totient is φ = 678238596.

The previous prime is 1017357881. The next prime is 1017357899. The reversal of 1017357897 is 7987537101.

1017357897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7987537101 = 3 ⋅2662512367.

It is not a de Polignac number, because 1017357897 - 2⁴ = 1017357881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1017357899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169559647 + ... + 169559652.

It is an arithmetic number, because the mean of its divisors is an integer number (339119300).

Almost surely, 2^1017357897 is an apocalyptic number.

It is an amenable number.

1017357897 is a deficient number, since it is larger than the sum of its proper divisors (339119303).

1017357897 is an equidigital number, since it uses as much as digits as its factorization.

1017357897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339119302.

The product of its (nonzero) digits is 370440, while the sum is 48.

The square root of 1017357897 is about 31896.0482975556. The cubic root of 1017357897 is about 1005.7528074109.

The spelling of 1017357897 in words is "one billion, seventeen million, three hundred fifty-seven thousand, eight hundred ninety-seven".