7227491 has 4 divisors (see below), whose sum is σ = 7335432. Its totient is φ = 7119552.

The previous prime is 7227461. The next prime is 7227527. The reversal of 7227491 is 1947227.

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

It is a cyclic number.

It is not a de Polignac number, because 7227491 - 2¹⁰ = 7226467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7227461) 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, 53870 + ... + 54003.

It is an arithmetic number, because the mean of its divisors is an integer number (1833858).

Almost surely, 2^7227491 is an apocalyptic number.

7227491 is a deficient number, since it is larger than the sum of its proper divisors (107941).

7227491 is a wasteful number, since it uses less digits than its factorization.

7227491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107940.

The product of its digits is 7056, while the sum is 32.

The square root of 7227491 is about 2688.3993378961. The cubic root of 7227491 is about 193.3433265412.

The spelling of 7227491 in words is "seven million, two hundred twenty-seven thousand, four hundred ninety-one".