7798261 has 4 divisors (see below), whose sum is σ = 7945452. Its totient is φ = 7651072.

The previous prime is 7798253. The next prime is 7798279. The reversal of 7798261 is 1628977.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1628977 = 7 ⋅232711.

It can be written as a sum of positive squares in 2 ways, for example, as 5317636 + 2480625 = 2306^2 + 1575^2 .

It is a cyclic number.

It is not a de Polignac number, because 7798261 - 2³ = 7798253 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 (7798201) 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, 73516 + ... + 73621.

It is an arithmetic number, because the mean of its divisors is an integer number (1986363).

Almost surely, 2^7798261 is an apocalyptic number.

It is an amenable number.

7798261 is a deficient number, since it is larger than the sum of its proper divisors (147191).

7798261 is a wasteful number, since it uses less digits than its factorization.

7798261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147190.

The product of its digits is 42336, while the sum is 40.

The square root of 7798261 is about 2792.5366604577. The cubic root of 7798261 is about 198.3045088319.

The spelling of 7798261 in words is "seven million, seven hundred ninety-eight thousand, two hundred sixty-one".