6420701 has 4 divisors (see below), whose sum is σ = 7337952. Its totient is φ = 5503452.

The previous prime is 6420697. The next prime is 6420707. The reversal of 6420701 is 1070246.

6420701 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1070246 = 2 ⋅535123.

It is a cyclic number.

It is not a de Polignac number, because 6420701 - 2² = 6420697 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 (6420707) 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, 458615 + ... + 458628.

It is an arithmetic number, because the mean of its divisors is an integer number (1834488).

Almost surely, 2^6420701 is an apocalyptic number.

It is an amenable number.

6420701 is a deficient number, since it is larger than the sum of its proper divisors (917251).

6420701 is an equidigital number, since it uses as much as digits as its factorization.

6420701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917250.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 6420701 is about 2533.9102194040. The cubic root of 6420701 is about 185.8635160924.

Adding to 6420701 its reverse (1070246), we get a palindrome (7490947).

The spelling of 6420701 in words is "six million, four hundred twenty thousand, seven hundred one".