6621094 has 4 divisors (see below), whose sum is σ = 9931644. Its totient is φ = 3310546.

The previous prime is 6621071. The next prime is 6621103. The reversal of 6621094 is 4901266.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4901266 = 2 ⋅2450633.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1655272 + ... + 1655275.

It is an arithmetic number, because the mean of its divisors is an integer number (2482911).

Almost surely, 2^6621094 is an apocalyptic number.

6621094 is a deficient number, since it is larger than the sum of its proper divisors (3310550).

6621094 is a wasteful number, since it uses less digits than its factorization.

6621094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3310549.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 6621094 is about 2573.1486548585. The cubic root of 6621094 is about 187.7773696316. Note that the first 3 decimals are identical.

The spelling of 6621094 in words is "six million, six hundred twenty-one thousand, ninety-four".