7422709 has 8 divisors (see below), whose sum is σ = 8507648. Its totient is φ = 6343920.

The previous prime is 7422691. The next prime is 7422719. The reversal of 7422709 is 9072247.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7422709 - 2¹¹ = 7420661 is a prime.

It is a Duffinian number.

7422709 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7422719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1444 + ... + 4114.

It is an arithmetic number, because the mean of its divisors is an integer number (1063456).

Almost surely, 2^7422709 is an apocalyptic number.

It is an amenable number.

7422709 is a deficient number, since it is larger than the sum of its proper divisors (1084939).

7422709 is a wasteful number, since it uses less digits than its factorization.

7422709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3075.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 7422709 is about 2724.4649015908. The cubic root of 7422709 is about 195.0686499468.

The spelling of 7422709 in words is "seven million, four hundred twenty-two thousand, seven hundred nine".