7268861 has 4 divisors (see below), whose sum is σ = 7285500. Its totient is φ = 7252224.

The previous prime is 7268857. The next prime is 7268881. The reversal of 7268861 is 1688627.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3960100 + 3308761 = 1990^2 + 1819^2 .

It is a cyclic number.

It is not a de Polignac number, because 7268861 - 2² = 7268857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7268881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7646 + ... + 8543.

It is an arithmetic number, because the mean of its divisors is an integer number (1821375).

Almost surely, 2^7268861 is an apocalyptic number.

It is an amenable number.

7268861 is a deficient number, since it is larger than the sum of its proper divisors (16639).

7268861 is a wasteful number, since it uses less digits than its factorization.

7268861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16638.

The product of its digits is 32256, while the sum is 38.

The square root of 7268861 is about 2696.0825284104. The cubic root of 7268861 is about 193.7115225707.

The spelling of 7268861 in words is "seven million, two hundred sixty-eight thousand, eight hundred sixty-one".