1001003798 has 4 divisors (see below), whose sum is σ = 1501505700. Its totient is φ = 500501898.

The previous prime is 1001003779. The next prime is 1001003803. The reversal of 1001003798 is 8973001001.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1001003798² = 2004017207220849608, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1001003798.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250250948 + ... + 250250951.

It is an arithmetic number, because the mean of its divisors is an integer number (375376425).

Almost surely, 2^1001003798 is an apocalyptic number.

1001003798 is a deficient number, since it is larger than the sum of its proper divisors (500501902).

1001003798 is an equidigital number, since it uses as much as digits as its factorization.

1001003798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500501901.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 1001003798 is about 31638.6440607053. The cubic root of 1001003798 is about 1000.3344874390.

Adding to 1001003798 its reverse (8973001001), we get a palindrome (9974004799).

The spelling of 1001003798 in words is "one billion, one million, three thousand, seven hundred ninety-eight".