7274321 has 8 divisors (see below), whose sum is σ = 7738080. Its totient is φ = 6818688.

The previous prime is 7274291. The next prime is 7274327. The reversal of 7274321 is 1234727.

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

It is a cyclic number.

It is not a de Polignac number, because 7274321 - 2²² = 3080017 is a prime.

It is a super-2 number, since 2×7274321² = 105831492022082, which contains 22 as substring.

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

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7274327) 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, 131 + ... + 3816.

It is an arithmetic number, because the mean of its divisors is an integer number (967260).

Almost surely, 2^7274321 is an apocalyptic number.

It is an amenable number.

7274321 is a deficient number, since it is larger than the sum of its proper divisors (463759).

7274321 is a wasteful number, since it uses less digits than its factorization.

7274321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4063.

The product of its digits is 2352, while the sum is 26.

The square root of 7274321 is about 2697.0949186115. The cubic root of 7274321 is about 193.7600125245.

The spelling of 7274321 in words is "seven million, two hundred seventy-four thousand, three hundred twenty-one".