9780798 has 8 divisors (see below), whose sum is σ = 19561608. Its totient is φ = 3260264.

The previous prime is 9780787. The next prime is 9780809. The reversal of 9780798 is 8970879.

It is an interprime number because it is at equal distance from previous prime (9780787) and next prime (9780809).

It is a sphenic number, since it is the product of 3 distinct primes.

9780798 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 815061 + ... + 815072.

It is an arithmetic number, because the mean of its divisors is an integer number (2445201).

Almost surely, 2^9780798 is an apocalyptic number.

9780798 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9780798 is a wasteful number, since it uses less digits than its factorization.

9780798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630138.

The product of its (nonzero) digits is 254016, while the sum is 48.

The square root of 9780798 is about 3127.4267377510. The cubic root of 9780798 is about 213.8576367024.

The spelling of 9780798 in words is "nine million, seven hundred eighty thousand, seven hundred ninety-eight".