7411991 has 4 divisors (see below), whose sum is σ = 7418112. Its totient is φ = 7405872.

The previous prime is 7411981. The next prime is 7412057. The reversal of 7411991 is 1991147.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 7411991 - 2¹⁴ = 7395607 is a prime.

It is a super-2 number, since 2×7411991² = 109875221168162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7411981) 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 in 3 ways as a sum of consecutive naturals, for example, 566 + ... + 3891.

It is an arithmetic number, because the mean of its divisors is an integer number (1854528).

Almost surely, 2^7411991 is an apocalyptic number.

7411991 is a deficient number, since it is larger than the sum of its proper divisors (6121).

7411991 is a wasteful number, since it uses less digits than its factorization.

7411991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6120.

The product of its digits is 2268, while the sum is 32.

The square root of 7411991 is about 2722.4971992639. The cubic root of 7411991 is about 194.9747151086.

The spelling of 7411991 in words is "seven million, four hundred eleven thousand, nine hundred ninety-one".