1038390897 has 4 divisors (see below), whose sum is σ = 1384521200. Its totient is φ = 692260596.

The previous prime is 1038390883. The next prime is 1038390919. The reversal of 1038390897 is 7980938301.

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 de Polignac number, because none of the positive numbers 2^k-1038390897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1038390497) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 173065147 + ... + 173065152.

It is an arithmetic number, because the mean of its divisors is an integer number (346130300).

Almost surely, 2^1038390897 is an apocalyptic number.

It is an amenable number.

1038390897 is a deficient number, since it is larger than the sum of its proper divisors (346130303).

1038390897 is an equidigital number, since it uses as much as digits as its factorization.

1038390897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346130302.

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 1038390897 is about 32224.0732527718. The cubic root of 1038390897 is about 1012.6366091548.

The spelling of 1038390897 in words is "one billion, thirty-eight million, three hundred ninety thousand, eight hundred ninety-seven".