7728798 has 32 divisors (see below), whose sum is σ = 19272960. Its totient is φ = 2007360.

The previous prime is 7728797. The next prime is 7728803. The reversal of 7728798 is 8978277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7728797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7903 + ... + 8826.

It is an arithmetic number, because the mean of its divisors is an integer number (602280).

Almost surely, 2^7728798 is an apocalyptic number.

7728798 is an abundant number, since it is smaller than the sum of its proper divisors (11544162).

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

7728798 is a wasteful number, since it uses less digits than its factorization.

7728798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16752.

The product of its digits is 395136, while the sum is 48.

The square root of 7728798 is about 2780.0715818122. The cubic root of 7728798 is about 197.7139528327.

The spelling of 7728798 in words is "seven million, seven hundred twenty-eight thousand, seven hundred ninety-eight".