7863261 has 8 divisors (see below), whose sum is σ = 11982144. Its totient is φ = 4493280.

The previous prime is 7863259. The next prime is 7863269. The reversal of 7863261 is 1623687.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7863261 - 2¹ = 7863259 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 7⁸ + 8⁷ + 6 + 3 + 2 + 6⁴ + 1 .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7863269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187200 + ... + 187241.

It is an arithmetic number, because the mean of its divisors is an integer number (1497768).

Almost surely, 2^7863261 is an apocalyptic number.

It is an amenable number.

7863261 is a deficient number, since it is larger than the sum of its proper divisors (4118883).

7863261 is a wasteful number, since it uses less digits than its factorization.

7863261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374451.

The product of its digits is 12096, while the sum is 33.

The square root of 7863261 is about 2804.1506735552. The cubic root of 7863261 is about 198.8539537672.

The spelling of 7863261 in words is "seven million, eight hundred sixty-three thousand, two hundred sixty-one".