6721466 has 8 divisors (see below), whose sum is σ = 10171764. Its totient is φ = 3330880.

The previous prime is 6721447. The next prime is 6721469. The reversal of 6721466 is 6641276.

It can be written as a sum of positive squares in 2 ways, for example, as 6651241 + 70225 = 2579^2 + 265^2 .

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

It is not an unprimeable number, because it can be changed into a prime (6721469) 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, 14645 + ... + 15096.

Almost surely, 2^6721466 is an apocalyptic number.

6721466 is a deficient number, since it is larger than the sum of its proper divisors (3450298).

6721466 is a wasteful number, since it uses less digits than its factorization.

6721466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29856.

The product of its digits is 12096, while the sum is 32.

The square root of 6721466 is about 2592.5790248322. The cubic root of 6721466 is about 188.7214807137.

The spelling of 6721466 in words is "six million, seven hundred twenty-one thousand, four hundred sixty-six".