7420667 has 4 divisors (see below), whose sum is σ = 7429200. Its totient is φ = 7412136.

The previous prime is 7420661. The next prime is 7420681. The reversal of 7420667 is 7660247.

It is a happy number.

7420667 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: 7660247 = 7 ⋅1094321.

It is a cyclic number.

It is not a de Polignac number, because 7420667 - 2⁸ = 7420411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7420661) 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, 2792 + ... + 4757.

It is an arithmetic number, because the mean of its divisors is an integer number (1857300).

Almost surely, 2^7420667 is an apocalyptic number.

7420667 is a deficient number, since it is larger than the sum of its proper divisors (8533).

7420667 is an equidigital number, since it uses as much as digits as its factorization.

7420667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8532.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 7420667 is about 2724.0901233256. The cubic root of 7420667 is about 195.0507603993.

The spelling of 7420667 in words is "seven million, four hundred twenty thousand, six hundred sixty-seven".