978503798 has 4 divisors (see below), whose sum is σ = 1467755700. Its totient is φ = 489251898.

The previous prime is 978503797. The next prime is 978503837. The reversal of 978503798 is 897305879.

978503798 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 an emirpimes, since its reverse is a distinct semiprime: 897305879 = 353 ⋅2541943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978503797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244625948 + ... + 244625951.

It is an arithmetic number, because the mean of its divisors is an integer number (366938925).

Almost surely, 2^978503798 is an apocalyptic number.

978503798 is a deficient number, since it is larger than the sum of its proper divisors (489251902).

978503798 is a wasteful number, since it uses less digits than its factorization.

978503798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489251901.

The product of its (nonzero) digits is 3810240, while the sum is 56.

The square root of 978503798 is about 31281.0453469829. The cubic root of 978503798 is about 992.7826342839.

The spelling of 978503798 in words is "nine hundred seventy-eight million, five hundred three thousand, seven hundred ninety-eight".