7800797 has 4 divisors (see below), whose sum is σ = 8069820. Its totient is φ = 7531776.

The previous prime is 7800791. The next prime is 7800799. The reversal of 7800797 is 7970087.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7970087 = 53 ⋅150379.

It can be written as a sum of positive squares in 2 ways, for example, as 2515396 + 5285401 = 1586^2 + 2299^2 .

It is a cyclic number.

It is not a de Polignac number, because 7800797 - 2⁴ = 7800781 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7800797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7800791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134468 + ... + 134525.

It is an arithmetic number, because the mean of its divisors is an integer number (2017455).

Almost surely, 2^7800797 is an apocalyptic number.

It is an amenable number.

7800797 is a deficient number, since it is larger than the sum of its proper divisors (269023).

7800797 is a wasteful number, since it uses less digits than its factorization.

7800797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269022.

The product of its (nonzero) digits is 24696, while the sum is 38.

The square root of 7800797 is about 2792.9906909977. The cubic root of 7800797 is about 198.3260027577.

The spelling of 7800797 in words is "seven million, eight hundred thousand, seven hundred ninety-seven".