7869798 has 24 divisors (see below), whose sum is σ = 17683848. Its totient is φ = 2623104.

The previous prime is 7869791. The next prime is 7869871. The reversal of 7869798 is 8979687.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a d-powerful number, because it can be written as 7 + 8³ + 6² + 9³ + 7⁸ + 9⁴ + 8⁷ .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7869791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7611 + ... + 8582.

It is an arithmetic number, because the mean of its divisors is an integer number (736827).

Almost surely, 2^7869798 is an apocalyptic number.

7869798 is an abundant number, since it is smaller than the sum of its proper divisors (9814050).

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

7869798 is a wasteful number, since it uses less digits than its factorization.

7869798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16210 (or 16198 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 54.

The square root of 7869798 is about 2805.3160249783. The cubic root of 7869798 is about 198.9090432202.

The spelling of 7869798 in words is "seven million, eight hundred sixty-nine thousand, seven hundred ninety-eight".