7268881 has 2 divisors, whose sum is σ = 7268882. Its totient is φ = 7268880.

The previous prime is 7268857. The next prime is 7268903. The reversal of 7268881 is 1888627.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7203856 + 65025 = 2684^2 + 255^2 .

It is a cyclic number.

It is not a de Polignac number, because 7268881 - 2¹³ = 7260689 is a prime.

It is a super-2 number, since 2×7268881² = 105673261984322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7268081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3634440 + 3634441.

It is an arithmetic number, because the mean of its divisors is an integer number (3634441).

Almost surely, 2^7268881 is an apocalyptic number.

It is an amenable number.

7268881 is a deficient number, since it is larger than the sum of its proper divisors (1).

7268881 is an equidigital number, since it uses as much as digits as its factorization.

7268881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43008, while the sum is 40.

The square root of 7268881 is about 2696.0862374932. The cubic root of 7268881 is about 193.7117002339.

The spelling of 7268881 in words is "seven million, two hundred sixty-eight thousand, eight hundred eighty-one".