3366921 has 8 divisors (see below), whose sum is σ = 4497984. Its totient is φ = 2240240.

The previous prime is 3366917. The next prime is 3366973. The reversal of 3366921 is 1296633.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3366921 - 2² = 3366917 is a prime.

It is a super-2 number, since 2×3366921² = 22672314040482, which contains 22 as substring.

3366921 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3366911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1780 + ... + 3146.

It is an arithmetic number, because the mean of its divisors is an integer number (562248).

Almost surely, 2^3366921 is an apocalyptic number.

It is an amenable number.

3366921 is a deficient number, since it is larger than the sum of its proper divisors (1131063).

3366921 is a wasteful number, since it uses less digits than its factorization.

3366921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191.

The product of its digits is 5832, while the sum is 30.

The square root of 3366921 is about 1834.9171643428. The cubic root of 3366921 is about 149.8802154810.

The spelling of 3366921 in words is "three million, three hundred sixty-six thousand, nine hundred twenty-one".