7321396 has 6 divisors (see below), whose sum is σ = 12812450. Its totient is φ = 3660696.

The previous prime is 7321393. The next prime is 7321399. The reversal of 7321396 is 6931237.

It is an interprime number because it is at equal distance from previous prime (7321393) and next prime (7321399).

It can be written as a sum of positive squares in only one way, i.e., 6916900 + 404496 = 2630^2 + 636^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7321393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 915171 + ... + 915178.

Almost surely, 2^7321396 is an apocalyptic number.

It is an amenable number.

7321396 is a deficient number, since it is larger than the sum of its proper divisors (5491054).

7321396 is a wasteful number, since it uses less digits than its factorization.

7321396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830353 (or 1830351 counting only the distinct ones).

The product of its digits is 6804, while the sum is 31.

The square root of 7321396 is about 2705.8078276182. The cubic root of 7321396 is about 194.1770799633.

The spelling of 7321396 in words is "seven million, three hundred twenty-one thousand, three hundred ninety-six".