6620494 has 8 divisors (see below), whose sum is σ = 9986760. Its totient is φ = 3291576.

The previous prime is 6620489. The next prime is 6620501. The reversal of 6620494 is 4940266.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8889 + ... + 9604.

It is an arithmetic number, because the mean of its divisors is an integer number (1248345).

Almost surely, 2^6620494 is an apocalyptic number.

6620494 is a deficient number, since it is larger than the sum of its proper divisors (3366266).

6620494 is a wasteful number, since it uses less digits than its factorization.

6620494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18674.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 6620494 is about 2573.0320635390. The cubic root of 6620494 is about 187.7716973653.

The spelling of 6620494 in words is "six million, six hundred twenty thousand, four hundred ninety-four".