7481911 has 2 divisors, whose sum is σ = 7481912. Its totient is φ = 7481910.

The previous prime is 7481879. The next prime is 7481917. The reversal of 7481911 is 1191847.

It is a strong prime.

It is an emirp because it is prime and its reverse (1191847) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7481911 - 2⁵ = 7481879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7481917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3740955 + 3740956.

It is an arithmetic number, because the mean of its divisors is an integer number (3740956).

Almost surely, 2^7481911 is an apocalyptic number.

7481911 is a deficient number, since it is larger than the sum of its proper divisors (1).

7481911 is an equidigital number, since it uses as much as digits as its factorization.

7481911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 31.

The square root of 7481911 is about 2735.3082093249. The cubic root of 7481911 is about 195.5858863915.

Subtracting from 7481911 its reverse (1191847), we obtain a square (6290064 = 2508²).

The spelling of 7481911 in words is "seven million, four hundred eighty-one thousand, nine hundred eleven".