6414991 has 4 divisors (see below), whose sum is σ = 6998184. Its totient is φ = 5831800.

The previous prime is 6414973. The next prime is 6415007. The reversal of 6414991 is 1994146.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6414991 - 2⁵ = 6414959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6414091) 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, 291580 + ... + 291601.

It is an arithmetic number, because the mean of its divisors is an integer number (1749546).

Almost surely, 2^6414991 is an apocalyptic number.

6414991 is a deficient number, since it is larger than the sum of its proper divisors (583193).

6414991 is a wasteful number, since it uses less digits than its factorization.

6414991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583192.

The product of its digits is 7776, while the sum is 34.

The square root of 6414991 is about 2532.7832516818. The cubic root of 6414991 is about 185.8084029287.

The spelling of 6414991 in words is "six million, four hundred fourteen thousand, nine hundred ninety-one".