7274389 has 4 divisors (see below), whose sum is σ = 7525260. Its totient is φ = 7023520.

The previous prime is 7274383. The next prime is 7274401. The reversal of 7274389 is 9834727.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9834727 = 7 ⋅1404961.

It can be written as a sum of positive squares in 2 ways, for example, as 5963364 + 1311025 = 2442^2 + 1145^2 .

It is a cyclic number.

It is not a de Polignac number, because 7274389 - 2⁵ = 7274357 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7274383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125392 + ... + 125449.

It is an arithmetic number, because the mean of its divisors is an integer number (1881315).

Almost surely, 2^7274389 is an apocalyptic number.

It is an amenable number.

7274389 is a deficient number, since it is larger than the sum of its proper divisors (250871).

7274389 is a wasteful number, since it uses less digits than its factorization.

7274389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250870.

The product of its digits is 84672, while the sum is 40.

The square root of 7274389 is about 2697.1075247383. The cubic root of 7274389 is about 193.7606162757.

The spelling of 7274389 in words is "seven million, two hundred seventy-four thousand, three hundred eighty-nine".