1083257897 has 4 divisors (see below), whose sum is σ = 1084826256. Its totient is φ = 1081689540.

The previous prime is 1083257891. The next prime is 1083257899. The reversal of 1083257897 is 7987523801.

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.

It is a cyclic number.

It is not a de Polignac number, because 1083257897 - 2¹⁶ = 1083192361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1083257891) 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, 783143 + ... + 784524.

It is an arithmetic number, because the mean of its divisors is an integer number (271206564).

Almost surely, 2^1083257897 is an apocalyptic number.

It is an amenable number.

1083257897 is a deficient number, since it is larger than the sum of its proper divisors (1568359).

1083257897 is an equidigital number, since it uses as much as digits as its factorization.

1083257897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568358.

The product of its (nonzero) digits is 846720, while the sum is 50.

The square root of 1083257897 is about 32912.8834501020. The cubic root of 1083257897 is about 1027.0161852611.

The spelling of 1083257897 in words is "one billion, eighty-three million, two hundred fifty-seven thousand, eight hundred ninety-seven".