7271457 has 8 divisors (see below), whose sum is σ = 9828384. Its totient is φ = 4781088.

The previous prime is 7271413. The next prime is 7271477. The reversal of 7271457 is 7541727.

It is a happy number.

7271457 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 7271457 - 2¹⁸ = 7009313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7271477) 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, 16383 + ... + 16820.

It is an arithmetic number, because the mean of its divisors is an integer number (1228548).

Almost surely, 2^7271457 is an apocalyptic number.

It is an amenable number.

7271457 is a deficient number, since it is larger than the sum of its proper divisors (2556927).

7271457 is a wasteful number, since it uses less digits than its factorization.

7271457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33279.

The product of its digits is 13720, while the sum is 33.

The square root of 7271457 is about 2696.5639247012. The cubic root of 7271457 is about 193.7345805280.

It can be divided in two parts, 72714 and 57, that added together give a triangular number (72771 = T₃₈₁).

The spelling of 7271457 in words is "seven million, two hundred seventy-one thousand, four hundred fifty-seven".