6690946 has 8 divisors (see below), whose sum is σ = 10047744. Its totient is φ = 3341700.

The previous prime is 6690941. The next prime is 6690949. The reversal of 6690946 is 6490966.

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

It is a junction number, because it is equal to n+sod(n) for n = 6690899 and 6690908.

It is not an unprimeable number, because it can be changed into a prime (6690941) 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, 1671 + ... + 4021.

It is an arithmetic number, because the mean of its divisors is an integer number (1255968).

Almost surely, 2^6690946 is an apocalyptic number.

6690946 is a deficient number, since it is larger than the sum of its proper divisors (3356798).

6690946 is a wasteful number, since it uses less digits than its factorization.

6690946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3776.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 6690946 is about 2586.6862971764. The cubic root of 6690946 is about 188.4354062465.

The spelling of 6690946 in words is "six million, six hundred ninety thousand, nine hundred forty-six".