6414921 has 12 divisors (see below), whose sum is σ = 9397440. Its totient is φ = 4215960.

The previous prime is 6414917. The next prime is 6414929. The reversal of 6414921 is 1294146.

It is not a de Polignac number, because 6414921 - 2² = 6414917 is a prime.

It is a super-2 number, since 2×6414921² = 82302422872482, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

6414921 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6414929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4381 + ... + 5658.

It is an arithmetic number, because the mean of its divisors is an integer number (783120).

Almost surely, 2^6414921 is an apocalyptic number.

It is an amenable number.

6414921 is a deficient number, since it is larger than the sum of its proper divisors (2982519).

6414921 is a wasteful number, since it uses less digits than its factorization.

6414921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10116 (or 10113 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 6414921 is about 2532.7694328541. The cubic root of 6414921 is about 185.8077270829.

The spelling of 6414921 in words is "six million, four hundred fourteen thousand, nine hundred twenty-one".