6621467 has 4 divisors (see below), whose sum is σ = 6627600. Its totient is φ = 6615336.

The previous prime is 6621463. The next prime is 6621487. The reversal of 6621467 is 7641266.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6621467 - 2² = 6621463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6621463) 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, 968 + ... + 3765.

It is an arithmetic number, because the mean of its divisors is an integer number (1656900).

Almost surely, 2^6621467 is an apocalyptic number.

6621467 is a deficient number, since it is larger than the sum of its proper divisors (6133).

6621467 is a wasteful number, since it uses less digits than its factorization.

6621467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6132.

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

The square root of 6621467 is about 2573.2211331326. The cubic root of 6621467 is about 187.7808957178.

The spelling of 6621467 in words is "six million, six hundred twenty-one thousand, four hundred sixty-seven".