7420047 has 4 divisors (see below), whose sum is σ = 9893400. Its totient is φ = 4946696.

The previous prime is 7420043. The next prime is 7420069. The reversal of 7420047 is 7400247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7400247 = 3 ⋅2466749.

It is a cyclic number.

It is not a de Polignac number, because 7420047 - 2² = 7420043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7419999 and 7420026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7420043) 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, 1236672 + ... + 1236677.

It is an arithmetic number, because the mean of its divisors is an integer number (2473350).

Almost surely, 2^7420047 is an apocalyptic number.

7420047 is a deficient number, since it is larger than the sum of its proper divisors (2473353).

7420047 is a wasteful number, since it uses less digits than its factorization.

7420047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473352.

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 7420047 is about 2723.9763214830. The cubic root of 7420047 is about 195.0453280556.

It can be divided in two parts, 74200 and 47, that added together give a palindrome (74247).

The spelling of 7420047 in words is "seven million, four hundred twenty thousand, forty-seven".