7487911 has 2 divisors, whose sum is σ = 7487912. Its totient is φ = 7487910.

The previous prime is 7487863. The next prime is 7487917. The reversal of 7487911 is 1197847.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7487911 - 2⁷ = 7487783 is a prime.

It is a super-2 number, since 2×7487911² = 112137622287842, which contains 22 as substring.

7487911 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7487917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3743955 + 3743956.

It is an arithmetic number, because the mean of its divisors is an integer number (3743956).

Almost surely, 2^7487911 is an apocalyptic number.

7487911 is a deficient number, since it is larger than the sum of its proper divisors (1).

7487911 is an equidigital number, since it uses as much as digits as its factorization.

7487911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 37.

The square root of 7487911 is about 2736.4047580722. The cubic root of 7487911 is about 195.6381547565.

Subtracting from 7487911 its reverse (1197847), we obtain a square (6290064 = 2508²).

The spelling of 7487911 in words is "seven million, four hundred eighty-seven thousand, nine hundred eleven".