7321966 has 8 divisors (see below), whose sum is σ = 11084040. Its totient is φ = 3627288.

The previous prime is 7321943. The next prime is 7321969. The reversal of 7321966 is 6691237.

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

It is a super-2 number, since 2×7321966² = 107222372210312, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7321969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16576 + ... + 17011.

It is an arithmetic number, because the mean of its divisors is an integer number (1385505).

Almost surely, 2^7321966 is an apocalyptic number.

7321966 is a deficient number, since it is larger than the sum of its proper divisors (3762074).

7321966 is a wasteful number, since it uses less digits than its factorization.

7321966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33698.

The product of its digits is 13608, while the sum is 34.

The square root of 7321966 is about 2705.9131545561. The cubic root of 7321966 is about 194.1821189869.

The spelling of 7321966 in words is "seven million, three hundred twenty-one thousand, nine hundred sixty-six".