6420967 has 4 divisors (see below), whose sum is σ = 7338256. Its totient is φ = 5503680.

The previous prime is 6420961. The next prime is 6420971. The reversal of 6420967 is 7690246.

6420967 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7690246 = 2 ⋅3845123.

It is not a de Polignac number, because 6420967 - 2³ = 6420959 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6420961) 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, 458634 + ... + 458647.

It is an arithmetic number, because the mean of its divisors is an integer number (1834564).

Almost surely, 2^6420967 is an apocalyptic number.

6420967 is a deficient number, since it is larger than the sum of its proper divisors (917289).

6420967 is an equidigital number, since it uses as much as digits as its factorization.

6420967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917288.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 6420967 is about 2533.9627069079. The cubic root of 6420967 is about 185.8660827391.

The spelling of 6420967 in words is "six million, four hundred twenty thousand, nine hundred sixty-seven".