6220407 has 4 divisors (see below), whose sum is σ = 8293880. Its totient is φ = 4146936.

The previous prime is 6220399. The next prime is 6220411. The reversal of 6220407 is 7040226.

It is a happy number.

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

It is not a de Polignac number, because 6220407 - 2³ = 6220399 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6220447) 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, 1036732 + ... + 1036737.

It is an arithmetic number, because the mean of its divisors is an integer number (2073470).

Almost surely, 2^6220407 is an apocalyptic number.

6220407 is a deficient number, since it is larger than the sum of its proper divisors (2073473).

6220407 is a wasteful number, since it uses less digits than its factorization.

6220407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073472.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 6220407 is about 2494.0743773994. The cubic root of 6220407 is about 183.9103907556.

The spelling of 6220407 in words is "six million, two hundred twenty thousand, four hundred seven".