7420873 has 4 divisors (see below), whose sum is σ = 7660288. Its totient is φ = 7181460.

The previous prime is 7420837. The next prime is 7420883. The reversal of 7420873 is 3780247.

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.

It is not a de Polignac number, because 7420873 - 2¹³ = 7412681 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 239383 = 7420873 / (7 + 4 + 2 + 0 + 8 + 7 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7420813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119661 + ... + 119722.

It is an arithmetic number, because the mean of its divisors is an integer number (1915072).

Almost surely, 2^7420873 is an apocalyptic number.

It is an amenable number.

7420873 is a deficient number, since it is larger than the sum of its proper divisors (239415).

7420873 is a wasteful number, since it uses less digits than its factorization.

7420873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239414.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 7420873 is about 2724.1279338533. The cubic root of 7420873 is about 195.0525652723.

The spelling of 7420873 in words is "seven million, four hundred twenty thousand, eight hundred seventy-three".