6214891 has 4 divisors (see below), whose sum is σ = 6220000. Its totient is φ = 6209784.

The previous prime is 6214841. The next prime is 6214907. The reversal of 6214891 is 1984126.

6214891 = T₂₀₃₄ + T₂₀₃₅ + T₂₀₃₆.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6214891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6214801) 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, 445 + ... + 3553.

It is an arithmetic number, because the mean of its divisors is an integer number (1555000).

Almost surely, 2^6214891 is an apocalyptic number.

6214891 is the 2036-th centered triangular number.

6214891 is a deficient number, since it is larger than the sum of its proper divisors (5109).

6214891 is a wasteful number, since it uses less digits than its factorization.

6214891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5108.

The product of its digits is 3456, while the sum is 31.

The square root of 6214891 is about 2492.9683110702. The cubic root of 6214891 is about 183.8560132997.

The spelling of 6214891 in words is "six million, two hundred fourteen thousand, eight hundred ninety-one".