7798871 has 4 divisors (see below), whose sum is σ = 7815000. Its totient is φ = 7782744.

The previous prime is 7798859. The next prime is 7798877. The reversal of 7798871 is 1788977.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1788977 = 257 ⋅6961.

It is a cyclic number.

It is not a de Polignac number, because 7798871 - 2⁶ = 7798807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7798877) 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 3 ways as a sum of consecutive naturals, for example, 7316 + ... + 8313.

It is an arithmetic number, because the mean of its divisors is an integer number (1953750).

Almost surely, 2^7798871 is an apocalyptic number.

7798871 is a deficient number, since it is larger than the sum of its proper divisors (16129).

7798871 is a wasteful number, since it uses less digits than its factorization.

7798871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16128.

The product of its digits is 197568, while the sum is 47.

The square root of 7798871 is about 2792.6458780160. The cubic root of 7798871 is about 198.3096793264.

The spelling of 7798871 in words is "seven million, seven hundred ninety-eight thousand, eight hundred seventy-one".