7420271 has 4 divisors (see below), whose sum is σ = 7458912. Its totient is φ = 7381632.

The previous prime is 7420261. The next prime is 7420277. The reversal of 7420271 is 1720247.

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

It is a cyclic number.

It is not a de Polignac number, because 7420271 - 2⁶ = 7420207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7420277) 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, 19031 + ... + 19416.

It is an arithmetic number, because the mean of its divisors is an integer number (1864728).

Almost surely, 2^7420271 is an apocalyptic number.

7420271 is a deficient number, since it is larger than the sum of its proper divisors (38641).

7420271 is a wasteful number, since it uses less digits than its factorization.

7420271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38640.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 7420271 is about 2724.0174375360. The cubic root of 7420271 is about 195.0472907437.

The spelling of 7420271 in words is "seven million, four hundred twenty thousand, two hundred seventy-one".