7474 has 8 divisors (see below), whose sum is σ = 11628. Its totient is φ = 3600.

The previous prime is 7459. The next prime is 7477. The reversal of 7474 is 4747.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5625 + 1849 = 75^2 + 43^2 .

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

It is an alternating number because its digits alternate between odd and even.

7474 is an undulating number in base 10.

It is a plaindrome in base 9 and base 15.

It is not an unprimeable number, because it can be changed into a prime (7477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24 + ... + 124.

2⁷⁴⁷⁴ is an apocalyptic number.

7474 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

7474 is a deficient number, since it is larger than the sum of its proper divisors (4154).

7474 is a wasteful number, since it uses less digits than its factorization.

7474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140.

The product of its digits is 784, while the sum is 22.

The square root of 7474 is about 86.4522989862. The cubic root of 7474 is about 19.5516927823.

Adding to 7474 its reverse (4747), we get a palindrome (12221).

The spelling of 7474 in words is "seven thousand, four hundred seventy-four", and thus it is an iban number.