7288491 has 8 divisors (see below), whose sum is σ = 11106304. Its totient is φ = 4164840.

The previous prime is 7288481. The next prime is 7288499. The reversal of 7288491 is 1948827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7288491 - 2⁵ = 7288459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7288499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173515 + ... + 173556.

It is an arithmetic number, because the mean of its divisors is an integer number (1388288).

Almost surely, 2^7288491 is an apocalyptic number.

7288491 is a deficient number, since it is larger than the sum of its proper divisors (3817813).

7288491 is a wasteful number, since it uses less digits than its factorization.

7288491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347081.

The product of its digits is 32256, while the sum is 39.

The square root of 7288491 is about 2699.7205410931. The cubic root of 7288491 is about 193.8857424062.

The spelling of 7288491 in words is "seven million, two hundred eighty-eight thousand, four hundred ninety-one".